diff --git a/applicationset/controllers/requeue_after_test.go b/applicationset/controllers/requeue_after_test.go
index 10067c119b78d..21bc3dbefafb5 100644
--- a/applicationset/controllers/requeue_after_test.go
+++ b/applicationset/controllers/requeue_after_test.go
@@ -60,7 +60,7 @@ func TestRequeueAfter(t *testing.T) {
 	terminalGenerators := map[string]generators.Generator{
 		"List":                    generators.NewListGenerator(),
 		"Clusters":                generators.NewClusterGenerator(k8sClient, ctx, appClientset, "argocd"),
-		"Git":                     generators.NewGitGenerator(mockServer),
+		"Git":                     generators.NewGitGenerator(mockServer, "namespace"),
 		"SCMProvider":             generators.NewSCMProviderGenerator(fake.NewClientBuilder().WithObjects(&corev1.Secret{}).Build(), generators.SCMAuthProviders{}, "", []string{""}, true),
 		"ClusterDecisionResource": generators.NewDuckTypeGenerator(ctx, fakeDynClient, appClientset, "argocd"),
 		"PullRequest":             generators.NewPullRequestGenerator(k8sClient, generators.SCMAuthProviders{}, "", []string{""}, true),
diff --git a/applicationset/generators/generator_spec_processor_test.go b/applicationset/generators/generator_spec_processor_test.go
index dfa89782f9a1f..a02ea5e3312c1 100644
--- a/applicationset/generators/generator_spec_processor_test.go
+++ b/applicationset/generators/generator_spec_processor_test.go
@@ -346,7 +346,7 @@ func getMockClusterGenerator() Generator {
 func getMockGitGenerator() Generator {
 	argoCDServiceMock := mocks.Repos{}
 	argoCDServiceMock.On("GetDirectories", mock.Anything, mock.Anything, mock.Anything).Return([]string{"app1", "app2", "app_3", "p1/app4"}, nil)
-	gitGenerator := NewGitGenerator(&argoCDServiceMock)
+	gitGenerator := NewGitGenerator(&argoCDServiceMock, "namespace")
 	return gitGenerator
 }
 
diff --git a/applicationset/generators/git.go b/applicationset/generators/git.go
index de070758912ed..312924bbb415c 100644
--- a/applicationset/generators/git.go
+++ b/applicationset/generators/git.go
@@ -24,13 +24,16 @@ import (
 var _ Generator = (*GitGenerator)(nil)
 
 type GitGenerator struct {
-	repos services.Repos
+	repos     services.Repos
+	namespace string
 }
 
-func NewGitGenerator(repos services.Repos) Generator {
+func NewGitGenerator(repos services.Repos, namespace string) Generator {
 	g := &GitGenerator{
-		repos: repos,
+		repos:     repos,
+		namespace: namespace,
 	}
+
 	return g
 }
 
@@ -67,7 +70,11 @@ func (g *GitGenerator) GenerateParams(appSetGenerator *argoprojiov1alpha1.Applic
 	if !strings.Contains(appSet.Spec.Template.Spec.Project, "{{") {
 		project := appSet.Spec.Template.Spec.Project
 		appProject := &argoprojiov1alpha1.AppProject{}
-		if err := client.Get(context.TODO(), types.NamespacedName{Name: project, Namespace: appSet.Namespace}, appProject); err != nil {
+		namespace := g.namespace
+		if namespace == "" {
+			namespace = appSet.Namespace
+		}
+		if err := client.Get(context.TODO(), types.NamespacedName{Name: project, Namespace: namespace}, appProject); err != nil {
 			return nil, fmt.Errorf("error getting project %s: %w", project, err)
 		}
 		// we need to verify the signature on the Git revision if GPG is enabled
diff --git a/applicationset/generators/git_test.go b/applicationset/generators/git_test.go
index 44278cc059990..cd0c14d8443f0 100644
--- a/applicationset/generators/git_test.go
+++ b/applicationset/generators/git_test.go
@@ -323,7 +323,7 @@ func TestGitGenerateParamsFromDirectories(t *testing.T) {
 
 			argoCDServiceMock.On("GetDirectories", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(testCaseCopy.repoApps, testCaseCopy.repoError)
 
-			gitGenerator := NewGitGenerator(&argoCDServiceMock)
+			gitGenerator := NewGitGenerator(&argoCDServiceMock, "")
 			applicationSetInfo := argoprojiov1alpha1.ApplicationSet{
 				ObjectMeta: metav1.ObjectMeta{
 					Name: "set",
@@ -624,7 +624,7 @@ func TestGitGenerateParamsFromDirectoriesGoTemplate(t *testing.T) {
 
 			argoCDServiceMock.On("GetDirectories", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(testCaseCopy.repoApps, testCaseCopy.repoError)
 
-			gitGenerator := NewGitGenerator(&argoCDServiceMock)
+			gitGenerator := NewGitGenerator(&argoCDServiceMock, "")
 			applicationSetInfo := argoprojiov1alpha1.ApplicationSet{
 				ObjectMeta: metav1.ObjectMeta{
 					Name: "set",
@@ -989,7 +989,7 @@ cluster:
 			argoCDServiceMock.On("GetFiles", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).
 				Return(testCaseCopy.repoFileContents, testCaseCopy.repoPathsError)
 
-			gitGenerator := NewGitGenerator(&argoCDServiceMock)
+			gitGenerator := NewGitGenerator(&argoCDServiceMock, "")
 			applicationSetInfo := argoprojiov1alpha1.ApplicationSet{
 				ObjectMeta: metav1.ObjectMeta{
 					Name: "set",
@@ -1345,7 +1345,7 @@ cluster:
 			argoCDServiceMock.On("GetFiles", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).
 				Return(testCaseCopy.repoFileContents, testCaseCopy.repoPathsError)
 
-			gitGenerator := NewGitGenerator(&argoCDServiceMock)
+			gitGenerator := NewGitGenerator(&argoCDServiceMock, "")
 			applicationSetInfo := argoprojiov1alpha1.ApplicationSet{
 				ObjectMeta: metav1.ObjectMeta{
 					Name: "set",
@@ -1406,7 +1406,8 @@ func TestGitGenerator_GenerateParams(t *testing.T) {
 			repoPathsError: nil,
 			appset: argoprojiov1alpha1.ApplicationSet{
 				ObjectMeta: metav1.ObjectMeta{
-					Name: "set",
+					Name:      "set",
+					Namespace: "namespace",
 				},
 				Spec: argoprojiov1alpha1.ApplicationSetSpec{
 					Generators: []argoprojiov1alpha1.ApplicationSetGenerator{{
@@ -1439,7 +1440,8 @@ func TestGitGenerator_GenerateParams(t *testing.T) {
 			repoPathsError: nil,
 			appset: argoprojiov1alpha1.ApplicationSet{
 				ObjectMeta: metav1.ObjectMeta{
-					Name: "set",
+					Name:      "set",
+					Namespace: "namespace",
 				},
 				Spec: argoprojiov1alpha1.ApplicationSetSpec{
 					Generators: []argoprojiov1alpha1.ApplicationSetGenerator{{
@@ -1471,7 +1473,7 @@ func TestGitGenerator_GenerateParams(t *testing.T) {
 		if testCase.callGetDirectories {
 			argoCDServiceMock.On("GetDirectories", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(testCase.repoApps, testCase.repoPathsError)
 		}
-		gitGenerator := NewGitGenerator(&argoCDServiceMock)
+		gitGenerator := NewGitGenerator(&argoCDServiceMock, "namespace")
 
 		scheme := runtime.NewScheme()
 		err := v1alpha1.AddToScheme(scheme)
diff --git a/applicationset/generators/matrix_test.go b/applicationset/generators/matrix_test.go
index 440fafd3f3ad2..99834b72b7916 100644
--- a/applicationset/generators/matrix_test.go
+++ b/applicationset/generators/matrix_test.go
@@ -1089,7 +1089,7 @@ func TestGitGenerator_GenerateParams_list_x_git_matrix_generator(t *testing.T) {
 	repoServiceMock.On("GetFiles", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(map[string][]byte{
 		"some/path.json": []byte("test: content"),
 	}, nil)
-	gitGenerator := NewGitGenerator(repoServiceMock)
+	gitGenerator := NewGitGenerator(repoServiceMock, "")
 
 	matrixGenerator := NewMatrixGenerator(map[string]Generator{
 		"List": listGeneratorMock,
diff --git a/cmd/argocd-applicationset-controller/commands/applicationset_controller.go b/cmd/argocd-applicationset-controller/commands/applicationset_controller.go
index b90bd7dbd1f65..81d26c983ff2a 100644
--- a/cmd/argocd-applicationset-controller/commands/applicationset_controller.go
+++ b/cmd/argocd-applicationset-controller/commands/applicationset_controller.go
@@ -177,7 +177,7 @@ func NewCommand() *cobra.Command {
 			terminalGenerators := map[string]generators.Generator{
 				"List":                    generators.NewListGenerator(),
 				"Clusters":                generators.NewClusterGenerator(mgr.GetClient(), ctx, k8sClient, namespace),
-				"Git":                     generators.NewGitGenerator(argoCDService),
+				"Git":                     generators.NewGitGenerator(argoCDService, namespace),
 				"SCMProvider":             generators.NewSCMProviderGenerator(mgr.GetClient(), scmAuth, scmRootCAPath, allowedScmProviders, enableScmProviders),
 				"ClusterDecisionResource": generators.NewDuckTypeGenerator(ctx, dynamicClient, k8sClient, namespace),
 				"PullRequest":             generators.NewPullRequestGenerator(mgr.GetClient(), scmAuth, scmRootCAPath, allowedScmProviders, enableScmProviders),