diff --git a/docs/content/en/docs-dev/operator-manual/piped/configuration-reference.md b/docs/content/en/docs-dev/operator-manual/piped/configuration-reference.md
index 70ce11be27..82ec4c73b9 100644
--- a/docs/content/en/docs-dev/operator-manual/piped/configuration-reference.md
+++ b/docs/content/en/docs-dev/operator-manual/piped/configuration-reference.md
@@ -25,6 +25,7 @@ spec:
 | pipedKeyData | string | Base64 encoded string of Piped key. Either pipedKeyFile or pipedKeyData must be set. | Yes |
 | apiAddress | string | The address used to connect to the control-plane's API. | Yes |
 | syncInterval | duration | How often to check whether an application should be synced. Default is `1m`. | No |
+<!-- TODO: Add doc for appConfigSyncInterval -->
 | git | [Git](/docs/operator-manual/piped/configuration-reference/#git) | Git configuration needed for Git commands.  | No |
 | repositories | [][Repository](/docs/operator-manual/piped/configuration-reference/#gitrepository) | List of Git repositories this piped will handle. | No |
 | chartRepositories | [][ChartRepository](/docs/operator-manual/piped/configuration-reference/#chartrepository) | List of Helm chart repositories that should be added while starting up. | No |
diff --git a/pkg/app/piped/appconfigreporter/appconfigreporter.go b/pkg/app/piped/appconfigreporter/appconfigreporter.go
index d59e3d665d..33626a0d7a 100644
--- a/pkg/app/piped/appconfigreporter/appconfigreporter.go
+++ b/pkg/app/piped/appconfigreporter/appconfigreporter.go
@@ -106,8 +106,7 @@ func (r *Reporter) Run(ctx context.Context) error {
 		r.gitRepos[repoCfg.RepoID] = repo
 	}
 
-	// FIXME: Think about sync interval of app config reporter
-	ticker := time.NewTicker(r.config.SyncInterval.Duration())
+	ticker := time.NewTicker(r.config.AppConfigSyncInterval.Duration())
 	defer ticker.Stop()
 
 	for {
diff --git a/pkg/config/piped.go b/pkg/config/piped.go
index baa493038e..fc80e3fc5a 100644
--- a/pkg/config/piped.go
+++ b/pkg/config/piped.go
@@ -49,6 +49,9 @@ type PipedSpec struct {
 	// How often to check whether an application should be synced.
 	// Default is 1m.
 	SyncInterval Duration `json:"syncInterval" default:"1m"`
+	// How often to check whether an application configuration file should be synced.
+	// Default is 5m.
+	AppConfigSyncInterval Duration `json:"appConfigSyncInterval" default:"5m"`
 	// Git configuration needed for git commands.
 	Git PipedGit `json:"git"`
 	// List of git repositories this piped will handle.
diff --git a/pkg/config/piped_test.go b/pkg/config/piped_test.go
index e5006973f2..34a24f28dc 100644
--- a/pkg/config/piped_test.go
+++ b/pkg/config/piped_test.go
@@ -37,12 +37,13 @@ func TestPipedConfig(t *testing.T) {
 			expectedKind:       KindPiped,
 			expectedAPIVersion: "pipecd.dev/v1beta1",
 			expectedSpec: &PipedSpec{
-				ProjectID:    "test-project",
-				PipedID:      "test-piped",
-				PipedKeyFile: "etc/piped/key",
-				APIAddress:   "your-pipecd.domain",
-				WebAddress:   "https://your-pipecd.domain",
-				SyncInterval: Duration(time.Minute),
+				ProjectID:             "test-project",
+				PipedID:               "test-piped",
+				PipedKeyFile:          "etc/piped/key",
+				APIAddress:            "your-pipecd.domain",
+				WebAddress:            "https://your-pipecd.domain",
+				SyncInterval:          Duration(time.Minute),
+				AppConfigSyncInterval: Duration(5 * time.Minute),
 				Git: PipedGit{
 					Username:   "username",
 					Email:      "username@email.com",