diff --git a/renderdoc/api/app/renderdoc_app.h b/renderdoc/api/app/renderdoc_app.h
index fce3f9037..b2d10c5e2 100644
--- a/renderdoc/api/app/renderdoc_app.h
+++ b/renderdoc/api/app/renderdoc_app.h
@@ -33,7 +33,7 @@
 #include <stdint.h>
 #endif
 
-#if defined(WIN32)
+#if defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER)
 #define RENDERDOC_CC __cdecl
 #elif defined(__linux__)
 #define RENDERDOC_CC