diff --git a/src/extras/physac.h b/src/extras/physac.h
index 7bcdb0f47..9d73b5c9a 100644
--- a/src/extras/physac.h
+++ b/src/extras/physac.h
@@ -256,8 +256,8 @@ PHYSACDEF Vector2 GetPhysicsShapeVertex(PhysicsBody body, int vertex);
     #include <time.h>                   // Required for: time(), clock_gettime()
     #if defined(_WIN32)
         // Functions required to query time on Windows
-        int __stdcall QueryPerformanceCounter(unsigned long long int *lpPerformanceCount);
-        int __stdcall QueryPerformanceFrequency(unsigned long long int *lpFrequency);
+        PHYSACDEF int __stdcall QueryPerformanceCounter(unsigned long long int *lpPerformanceCount);
+        PHYSACDEF int __stdcall QueryPerformanceFrequency(unsigned long long int *lpFrequency);
     #endif
     #if defined(__linux__) || defined(__FreeBSD__)
         #if _POSIX_C_SOURCE < 199309L