diff --git a/pkg/apis/application/v1alpha1/types.go b/pkg/apis/application/v1alpha1/types.go
index 2a4529585a33a..c6f3810fb20fa 100644
--- a/pkg/apis/application/v1alpha1/types.go
+++ b/pkg/apis/application/v1alpha1/types.go
@@ -3144,7 +3144,7 @@ func ParseProxyUrl(proxyUrl string) (*url.URL, error) {
 	switch u.Scheme {
 	case "http", "https", "socks5":
 	default:
-		return nil, fmt.Errorf("unsupported scheme %q, must be http, https, or socks5", u.Scheme)
+		return nil, fmt.Errorf("Failed to parse proxy url, unsupported scheme %q, must be http, https, or socks5", u.Scheme)
 	}
 	return u, nil
 }
diff --git a/pkg/apis/application/v1alpha1/types_test.go b/pkg/apis/application/v1alpha1/types_test.go
index 4ee962d392ac6..d4fe0c73843fd 100644
--- a/pkg/apis/application/v1alpha1/types_test.go
+++ b/pkg/apis/application/v1alpha1/types_test.go
@@ -4277,7 +4277,7 @@ func TestCluster_ParseProxyUrl(t *testing.T) {
 		},
 		{
 			url:            "test://!abc",
-			expectedErrMsg: "unsupported scheme \"test\", must be http, https, or socks5",
+			expectedErrMsg: "Failed to parse proxy url, unsupported scheme \"test\", must be http, https, or socks5",
 		},
 		{
 			url:            "http://192.168.99.100:8443",