diff --git a/dlls/msi/tests/source.c b/dlls/msi/tests/source.c
index b508a15a03b..192f01070cb 100644
--- a/dlls/msi/tests/source.c
+++ b/dlls/msi/tests/source.c
@@ -3145,6 +3145,8 @@ static void test_MsiSourceListAddSource(void)
     size = MAX_PATH;
     GetUserNameA(ptr, &size);
 
+    trace("username: %s\n", username);
+
     /* GetLastError is not set by the function */
 
     /* NULL szProduct */