diff --git a/dlls/wintrust/tests/softpub.c b/dlls/wintrust/tests/softpub.c
index aa27333cdd0d886721135802433925c5780ea54d..01902dd09fb6a9916d62a97334c241c66b4dc910 100644
--- a/dlls/wintrust/tests/softpub.c
+++ b/dlls/wintrust/tests/softpub.c
@@ -437,7 +437,7 @@ static void test_wintrust(void)
     wtd.dwUIChoice = WTD_UI_NONE;
     wtd.fdwRevocationChecks = WTD_REVOKE_WHOLECHAIN;
     wtd.dwUnionChoice = WTD_CHOICE_FILE;
-    wtd.pFile = &file;
+    U(wtd).pFile = &file;
     wtd.dwStateAction = WTD_STATEACTION_VERIFY;
     memset(&file, 0, sizeof(file));
     file.cbStruct = sizeof(file);