diff --git a/fhem/fhem.pl b/fhem/fhem.pl
index 1f5ef84f8..8ee3f38d4 100755
--- a/fhem/fhem.pl
+++ b/fhem/fhem.pl
@@ -116,6 +116,8 @@ sub attrSplit($);
 sub computeClientArray($$);
 sub concatc($$$);
 sub configDBUsed();
+sub contains_numeric($@);
+sub contains_string($@);
 sub createNtfyHash();
 sub createUniqueId();
 sub devspec2array($;$$);