diff --git a/cimgui/cimgui.h b/cimgui/cimgui.h
index 6b1e14d..3996304 100644
--- a/cimgui/cimgui.h
+++ b/cimgui/cimgui.h
@@ -7,7 +7,7 @@
 #else
 #define API __declspec(dllexport)
 #endif
-#ifdef __GNUC__
+#ifndef __GNUC__
 #define snprintf sprintf_s
 #endif
 #else