@@ -36,9 +36,9 @@
 		fi
 	elif echo "${TCLVERS}" | grep '^fossil_' >/dev/null; then
 		use_fossil='1'
 
-		FOSSILTAG=$(echo "${TCLVERS}" | sed 's/^fossil_//g')
+		FOSSILTAG=$(echo "${TCLVERS}" | sed 's/^fossil_//g;s/_tk=.*$//g')
 	fi
 	export FOSSILTAG
 
 	if [ -d 'buildsrc' ]; then