diff --git a/dlls/comctl32/tests/comboex.c b/dlls/comctl32/tests/comboex.c
index af018395297..faa32a3727b 100644
--- a/dlls/comctl32/tests/comboex.c
+++ b/dlls/comctl32/tests/comboex.c
@@ -127,7 +127,7 @@ static HWND subclass_editbox(HWND hwndComboEx)
 
 static void test_comboboxex(void) {
     HWND myHwnd = 0;
-    LONG res = -1;
+    LONG res;
     COMBOBOXEXITEMA cbexItem;
     static const char *first_item  = "First Item",
                 *second_item = "Second Item",