diff --git a/pkg/osbuild/export_test.go b/pkg/osbuild/export_test.go
index 8376cc17fa..67960103ee 100644
--- a/pkg/osbuild/export_test.go
+++ b/pkg/osbuild/export_test.go
@@ -3,3 +3,11 @@ package osbuild
 type (
 	StatusJSON = statusJSON
 )
+
+func MockOsbuildCmd(s string) (restore func()) {
+	saved := osbuildCmd
+	osbuildCmd = s
+	return func() {
+		osbuildCmd = saved
+	}
+}
diff --git a/pkg/osbuild/osbuild-exec.go b/pkg/osbuild/osbuild-exec.go
index 83a7702c91..5d3f6bd419 100644
--- a/pkg/osbuild/osbuild-exec.go
+++ b/pkg/osbuild/osbuild-exec.go
@@ -24,7 +24,7 @@ const (
 	MonitorLog     = "LogMonitor"
 )
 
-var OSBuildCmd = "osbuild"
+var osbuildCmd = "osbuild"
 
 type OSBuildOptions struct {
 	StoreDir  string
@@ -49,7 +49,7 @@ func NewOSBuildCmd(manifest []byte, exports, checkpoints []string, optsPtr *OSBu
 
 	// nolint: gosec
 	cmd := exec.Command(
-		OSBuildCmd,
+		osbuildCmd,
 		"--store", opts.StoreDir,
 		"--output-directory", opts.OutputDir,
 		fmt.Sprintf("--cache-max-size=%v", cacheMaxSize),
@@ -156,7 +156,7 @@ func CheckMinimumOSBuildVersion() error {
 // OSBuildVersion returns the version of osbuild.
 func OSBuildVersion() (string, error) {
 	var stdoutBuffer bytes.Buffer
-	cmd := exec.Command(OSBuildCmd, "--version")
+	cmd := exec.Command(osbuildCmd, "--version")
 	cmd.Stdout = &stdoutBuffer
 
 	err := cmd.Run()
@@ -173,7 +173,7 @@ func OSBuildVersion() (string, error) {
 
 // OSBuildInspect converts a manifest to an inspected manifest.
 func OSBuildInspect(manifest []byte) ([]byte, error) {
-	cmd := exec.Command(OSBuildCmd, "--inspect")
+	cmd := exec.Command(osbuildCmd, "--inspect")
 	cmd.Stdin = bytes.NewBuffer(manifest)
 
 	out, err := cmd.Output()
diff --git a/pkg/osbuild/osbuild-exec_test.go b/pkg/osbuild/osbuild-exec_test.go
index 074df1576a..1a8914d081 100644
--- a/pkg/osbuild/osbuild-exec_test.go
+++ b/pkg/osbuild/osbuild-exec_test.go
@@ -13,14 +13,6 @@ import (
 	"github.com/osbuild/images/pkg/osbuild"
 )
 
-func mockOsbuildCmd(s string) (restore func()) {
-	saved := osbuild.OSBuildCmd
-	osbuild.OSBuildCmd = s
-	return func() {
-		osbuild.OSBuildCmd = saved
-	}
-}
-
 func makeFakeOsbuild(t *testing.T, content string) string {
 	p := filepath.Join(t.TempDir(), "fake-osbuild")
 	err := os.WriteFile(p, []byte("#!/bin/sh\n"+content), 0755)
@@ -117,7 +109,7 @@ else
     echo '{"success": true}'
 fi
 `)
-	restore := mockOsbuildCmd(fakeOsbuildBinary)
+	restore := osbuild.MockOsbuildCmd(fakeOsbuildBinary)
 	defer restore()
 
 	opts := &osbuild.OSBuildOptions{