diff --git a/tests/server/tftpd.c b/tests/server/tftpd.c
index 0e82f5ff3a..f64f5daf44 100644
--- a/tests/server/tftpd.c
+++ b/tests/server/tftpd.c
@@ -761,7 +761,7 @@ static void timer(int signum)
 #endif
 }
 
-static void (int signum)
+static void justtimeout(int signum)
 {
   (void)signum;
 }