diff --git a/modules/auth/pam/pam_test.go b/modules/auth/pam/pam_test.go
index 7265b5d0c15..d4ab058ec78 100644
--- a/modules/auth/pam/pam_test.go
+++ b/modules/auth/pam/pam_test.go
@@ -15,5 +15,5 @@ func TestPamAuth(t *testing.T) {
 	result, err := Auth("gitea", "user1", "false-pwd")
 	assert.Error(t, err)
 	assert.EqualError(t, err, "Authentication failure")
-	assert.Len(t, result)
+	assert.Empty(t, result)
 }