diff --git a/fhem/fhem.pl b/fhem/fhem.pl
index 2f8564fe8..6f190e71f 100755
--- a/fhem/fhem.pl
+++ b/fhem/fhem.pl
@@ -74,7 +74,6 @@ sub ReadingsVal($$$);
 sub RemoveInternalTimer($);
 sub ReplaceEventMap($$$);
 sub ResolveDateWildcards($@);
-sub SecondsTillTomorrow($);
 sub SemicolonEscape($);
 sub SignalHandling();
 sub TimeNow();