diff --git a/src/win32/zdoom.rc b/src/win32/zdoom.rc
index 76adf70e3..3ecc36813 100644
--- a/src/win32/zdoom.rc
+++ b/src/win32/zdoom.rc
@@ -220,16 +220,12 @@ END
 //
 // Dialog
 //
-#ifdef _MSC_VER
+
 IDD_IWADDIALOG DIALOGEX 0, 0, 224, 249
-#else
-// [SP] Upstreamed from Zandronum
-IDD_IWADDIALOG DIALOGEX 0, 0, 224, 246
-#endif
 STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | DS_CENTER | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_APPWINDOW
 CAPTION "Welcome"
-#ifdef _MSC_VER
+#ifndef __MINGW32__
 LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 FONT 8, "MS Shell Dlg"
 {
@@ -252,6 +248,7 @@ FONT 8, "MS Shell Dlg"
    CONTROL "Exit", IDCANCEL, BUTTON, BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 166, 228, 50, 14
 }
 #else
+// [SP] Upstreamed from Zandronum
 FONT 8, "MS Shell Dlg", 0, 0, 0x1
 BEGIN
     ICON            IDI_ICON1,IDC_STATIC,7,7,21,20