diff --git a/mediachanger/castorrmc/h/Csnprintf.h b/mediachanger/castorrmc/h/Csnprintf.h
index d685cf0573e6b3881d30c3c7b45d65fc080754e7..989656e8e0c3e1c3f81122beec9d3c338f6be246 100644
--- a/mediachanger/castorrmc/h/Csnprintf.h
+++ b/mediachanger/castorrmc/h/Csnprintf.h
@@ -10,7 +10,7 @@
 #include <sys/types.h>
 #include "osdep.h"
 
-EXTERN_C int Csnprintf _PROTO((char *, size_t, const char *, ...));
-EXTERN_C int Cvsnprintf _PROTO((char *, size_t, const char *, va_list));
+EXTERN_C int Csnprintf (char *, size_t, const char *, ...);
+EXTERN_C int Cvsnprintf (char *, size_t, const char *, va_list);
 
 #endif /* __Csnprintf_h */