diff --git a/src/m_menu.c b/src/m_menu.c
index c9adbfb9..cfcb2458 100644
--- a/src/m_menu.c
+++ b/src/m_menu.c
@@ -6048,7 +6048,7 @@ void M_SortServerList(void)
 
 #ifndef NONET
 #ifdef UPDATE_ALERT
-static int M_CheckMODVersion(void)
+static boolean M_CheckMODVersion(void)
 {
 	char updatestring[500];
 	const char *updatecheck = GetMODVersion();