diff --git a/scripts/create_sig.sh b/scripts/create_sig.sh
index 49d7cd8..206c8f4 100755
--- a/scripts/create_sig.sh
+++ b/scripts/create_sig.sh
@@ -161,9 +161,9 @@ do
 					$KOJI add-tag-inheritance --priority 5 $R_SIG-$TAG-build buildsys${DIST}
 					$KOJI add-tag-inheritance --priority 10 $R_SIG-$TAG-build $R_SIG-candidate
 					# If -common exists for the project add it
-					$KOJI list-tags | grep $P_SIG-common-candidate &> /dev/null
 					if [ "x$RELEASE" != "xcommon" ]
 					then
+						$KOJI list-tags | grep $P_SIG-common-candidate &> /dev/null
                                 		[ $? -gt 0 ] && echo "Adding $P_SIG-common-candidate as inheritance" && $KOJI add-tag-inheritance --priority 15 $R_SIG-$TAG-build $P_SIG-common-candidate
 					fi
 					$KOJI list-tagged buildsys${DIST} | grep buildsys-macros-$REALTAG &> /dev/null