diff --git a/desmume/src/gfx3d.cpp b/desmume/src/gfx3d.cpp
index 034091d93..be7c24b41 100644
--- a/desmume/src/gfx3d.cpp
+++ b/desmume/src/gfx3d.cpp
@@ -1366,7 +1366,7 @@ void gfx3d_glFlush(u32 v)
 	gfx3d.wbuffer = BIT1(v);
 }
 
-static int gfx3d_ysort_compare(const void * elem1, const void * elem2)
+static int _CDECL_ gfx3d_ysort_compare(const void * elem1, const void * elem2)
 {
 	int num1 = *(int*)elem1;
 	int num2 = *(int*)elem2;
diff --git a/desmume/src/types.h b/desmume/src/types.h
index 2612502a2..abaf1152e 100644
--- a/desmume/src/types.h
+++ b/desmume/src/types.h
@@ -114,6 +114,12 @@
 #endif
 #endif
 
+#ifdef _MSC_VER
+#define _CDECL_ __cdecl
+#else
+#define _CDECL_
+#endif
+
 #ifndef INLINE
 #if defined(_MSC_VER) || defined(__INTEL_COMPILER)
 #define INLINE _inline