diff --git a/appl/ftp/ftp/cmds.c b/appl/ftp/ftp/cmds.c
index dcb18b6d8..4f3214390 100644
--- a/appl/ftp/ftp/cmds.c
+++ b/appl/ftp/ftp/cmds.c
@@ -435,7 +435,7 @@ void
 mput(int argc, char **argv)
 {
     int i;
-    RETSIGTYPE (*oldintr)();
+    RETSIGTYPE (*oldintr)(int);
     int ointer;
     char *tp;