diff --git a/src/dynapi/SDL_dynapi_procs.h b/src/dynapi/SDL_dynapi_procs.h
index b38bfceda..c17cecb70 100644
--- a/src/dynapi/SDL_dynapi_procs.h
+++ b/src/dynapi/SDL_dynapi_procs.h
@@ -508,7 +508,7 @@ SDL_DYNAPI_PROC(void,SDL_WaitThread,(SDL_Thread *a, int *b),(a,b),)
 SDL_DYNAPI_PROC(void,SDL_DetachThread,(SDL_Thread *a),(a),)
 SDL_DYNAPI_PROC(SDL_TLSID,SDL_TLSCreate,(void),(),return)
 SDL_DYNAPI_PROC(void*,SDL_TLSGet,(SDL_TLSID a),(a),return)
-SDL_DYNAPI_PROC(int,SDL_TLSSet,(SDL_TLSID a, const void *b, void (*c)(void*)),(a,b,c),return)
+SDL_DYNAPI_PROC(int,SDL_TLSSet,(SDL_TLSID a, const void *b, void (SDLCALL *c)(void*)),(a,b,c),return)
 SDL_DYNAPI_PROC(Uint32,SDL_GetTicks,(void),(),return)
 SDL_DYNAPI_PROC(Uint64,SDL_GetPerformanceCounter,(void),(),return)
 SDL_DYNAPI_PROC(Uint64,SDL_GetPerformanceFrequency,(void),(),return)