diff --git a/ruamoko/include/AutoreleasePool.h b/ruamoko/include/AutoreleasePool.h
index 1b59c1385..1cc6bc24f 100644
--- a/ruamoko/include/AutoreleasePool.h
+++ b/ruamoko/include/AutoreleasePool.h
@@ -15,6 +15,6 @@
 
 @end
 
-void ARP_FreeAllPools (void);
+@extern void ARP_FreeAllPools (void);
 
 #endif	// __ruamoko_AutoreleasePool_h