diff --git a/rostests/winetests/mapi32/prop.c b/rostests/winetests/mapi32/prop.c
index da0a461eff5..a26f003256b 100644
--- a/rostests/winetests/mapi32/prop.c
+++ b/rostests/winetests/mapi32/prop.c
@@ -716,7 +716,7 @@ static void test_ScCountProps(void)
     GUID iids[4], *iid = iids;
     SCODE res;
     ULONG pt, exp, ulRet;
-    int success = 1;
+    BOOL success = TRUE;
 
     if (!pScCountProps)
     {