diff --git a/drafter/VERSION b/drafter/VERSION
index 5bec93112..73462a5a1 100644
--- a/drafter/VERSION
+++ b/drafter/VERSION
@@ -1 +1 @@
-2.5.1-SNAPSHOT
+2.5.1
diff --git a/package/.DS_Store b/package/.DS_Store
new file mode 100644
index 000000000..f75e812e7
Binary files /dev/null and b/package/.DS_Store differ
diff --git a/package/install/drafter-start.sh b/package/install/drafter-start.sh
index 24d97e88d..cddec660b 100644
--- a/package/install/drafter-start.sh
+++ b/package/install/drafter-start.sh
@@ -8,6 +8,7 @@ DRAFTER_JVM_OPTS="-Xmx4g \
                   -Dcom.sun.management.jmxremote.port=3007 \
                   -Dhttp.maxConnections=60 \
                   -Dorg.eclipse.jetty.server.Request.maxFormContentSize=41943040 \
+                  -Dlog4j2.formatMsgNoLookups=true \
                   -Dlog4j.configurationFile=log4j2.xml"
 
 java ${DRAFTER_JVM_OPTS} -cp 'lib/*:drafter.jar' clojure.main -m drafter.main drafter-prod.edn