diff --git a/zmeventnotification.pl b/zmeventnotification.pl
index 75c1c8ef..c66cd0aa 100755
--- a/zmeventnotification.pl
+++ b/zmeventnotification.pl
@@ -2867,7 +2867,7 @@ sub initFCMTokens {
     push @active_connections,
       {
       type         => FCM,
-      id           => gettimeofday(),
+      id           => int scalar gettimeofday(),
       token        => $token,
       state        => INVALID_CONNECTION,
       time         => time(),