diff --git a/src/osd/sdl/sdlmain.c b/src/osd/sdl/sdlmain.c
index 4111152d527..e98060e7889 100644
--- a/src/osd/sdl/sdlmain.c
+++ b/src/osd/sdl/sdlmain.c
@@ -81,7 +81,7 @@
 //  Global variables
 //============================================================
 
-#ifdef SDLMAME_UNIX
+#if defined(SDLMAME_UNIX) || defined(SDLMAME_WIN32)
 int sdl_entered_debugger;
 #endif