diff --git a/provisionersdk/archive.go b/provisionersdk/archive.go
index ec496b6f31592..a0aa4d52b19dc 100644
--- a/provisionersdk/archive.go
+++ b/provisionersdk/archive.go
@@ -15,15 +15,17 @@ const (
 	TemplateArchiveLimit = 1 << 20
 )
 
-func dirHasExt(dir string, ext string) (bool, error) {
+func dirHasExt(dir string, exts ...string) (bool, error) {
 	dirEnts, err := os.ReadDir(dir)
 	if err != nil {
 		return false, err
 	}
 
 	for _, fi := range dirEnts {
-		if strings.HasSuffix(fi.Name(), ext) {
-			return true, nil
+		for _, ext := range exts {
+			if strings.HasSuffix(fi.Name(), ext) {
+				return true, nil
+			}
 		}
 	}
 
@@ -35,8 +37,8 @@ func Tar(w io.Writer, directory string, limit int64) error {
 	tarWriter := tar.NewWriter(w)
 	totalSize := int64(0)
 
-	const tfExt = ".tf"
-	hasTf, err := dirHasExt(directory, tfExt)
+	tfExts := []string{".tf", ".tf.json"}
+	hasTf, err := dirHasExt(directory, tfExts...)
 	if err != nil {
 		return err
 	}
@@ -50,7 +52,7 @@ func Tar(w io.Writer, directory string, limit int64) error {
 		// useless.
 		return xerrors.Errorf(
 			"%s is not a valid template since it has no %s files",
-			absPath, tfExt,
+			absPath, tfExts,
 		)
 	}
 
diff --git a/provisionersdk/archive_test.go b/provisionersdk/archive_test.go
index 66fae25dd9832..1bb5ea793fa9a 100644
--- a/provisionersdk/archive_test.go
+++ b/provisionersdk/archive_test.go
@@ -33,6 +33,15 @@ func TestTar(t *testing.T) {
 		err = provisionersdk.Tar(io.Discard, dir, 1024)
 		require.NoError(t, err)
 	})
+	t.Run("ValidJSON", func(t *testing.T) {
+		t.Parallel()
+		dir := t.TempDir()
+		file, err := os.CreateTemp(dir, "*.tf.json")
+		require.NoError(t, err)
+		_ = file.Close()
+		err = provisionersdk.Tar(io.Discard, dir, 1024)
+		require.NoError(t, err)
+	})
 	t.Run("HiddenFiles", func(t *testing.T) {
 		t.Parallel()
 		dir := t.TempDir()