diff --git a/ISLE/define.h b/ISLE/define.h
index 6e084de8..8d6be5b7 100644
--- a/ISLE/define.h
+++ b/ISLE/define.h
@@ -10,7 +10,7 @@ extern const char *WINDOW_TITLE;
 extern unsigned char g_mousedown;
 extern unsigned char g_mousemoved;
 extern int g_rmDisabled;
-extern int g_targetDepthSet;
+extern int g_targetDepthNotSet;
 extern int g_targetWidth;
 extern int g_targetHeight;
 extern unsigned int g_targetDepth;