diff --git a/tests/Tests.h b/tests/Tests.h
index f9d7e4cf..8b89ac22 100644
--- a/tests/Tests.h
+++ b/tests/Tests.h
@@ -7,7 +7,7 @@
 #else
 #define DLL_API __attribute__ ((visibility ("default")))
 #define STDCALL __attribute__((stdcall))
-#define CDECL __attribute__((stdcall))
+#define CDECL __attribute__((cdecl))
 #endif
 
 #define CS_OUT
\ No newline at end of file