diff --git a/tools/mbspc/mbspc/l_cmd.h b/tools/mbspc/mbspc/l_cmd.h
index 40c90a9f..2c919871 100644
--- a/tools/mbspc/mbspc/l_cmd.h
+++ b/tools/mbspc/mbspc/l_cmd.h
@@ -54,6 +54,7 @@ char *strupr (char *in);
 char *strlower (char *in);
 int Q_strncasecmp (char *s1, char *s2, int n);
 int Q_strcasecmp (char *s1, char *s2);
+void Q_strncpyz( char *dest, const char *src, int destsize );
 void Q_getwd (char *out);
 
 int Q_filelength (FILE *f);