diff --git a/changelogs/unreleased/20190326132435529_new.yml b/changelogs/unreleased/20190326132435529_new.yml
new file mode 100644
index 0000000000000000000000000000000000000000..96f9df3117d0882ad88173a24152c0044da814ad
--- /dev/null
+++ b/changelogs/unreleased/20190326132435529_new.yml
@@ -0,0 +1,5 @@
+---
+Added:
+- New kind of storage driver has been added. Hybrid Driver uses mongodb as index database
+  for complex query and additional technology for store the daq data. Actually has
+  been implemented the cassandra storage layer for Hybrid driver
diff --git a/tools/chaos-changelog b/tools/chaos-changelog
index 74b6dbcc596cdeef3abea0f32564b82a02a0d804..4a1d977d4f2ed133da0eddae8081346d7309dc43 100755
--- a/tools/chaos-changelog
+++ b/tools/chaos-changelog
@@ -50,7 +50,7 @@ while getopts sha: opt; do
       ;;
 
 	h)
-	    echo -e "Usage is $0 -s \n-s setup environment for changelog management"
+	    echo -e "Usage is $0 -s \n-s setup environment for changelog management\n-a add a new entry in changelog"
 	    exit 0;
 	    ;;
     esac