diff --git a/stream/cache2.c b/stream/cache2.c
index aff5a93a6f..37889acaa0 100644
--- a/stream/cache2.c
+++ b/stream/cache2.c
@@ -20,11 +20,9 @@
 #include "osdep/timer.h"
 #ifdef WIN32
 #include <windows.h>
-static DWORD WINAPI ThreadProc(void* s);
 #elif defined(__OS2__)
 #define INCL_DOS
 #include <os2.h>
-static void ThreadProc( void *s );
 #else
 #include <sys/wait.h>
 #endif
@@ -37,6 +35,7 @@ extern int use_gui;
 
 int stream_fill_buffer(stream_t *s);
 int stream_seek_long(stream_t *s,off_t pos);
+static void ThreadProc(void *s);
 
 typedef struct {
   // constats:
@@ -362,12 +361,9 @@ int stream_enable_cache(stream_t *stream,int size,int min,int seek_limit){
   
 #if defined(WIN32) || defined(__OS2__)
 }
-#ifdef WIN32
-static DWORD WINAPI ThreadProc(void*s){
-#else   // OS2
+
 static void ThreadProc( void *s ){
 #endif
-#endif
   
 #ifdef CONFIG_GUI
   use_gui = 0; // mp_msg may not use gui stuff in forked code