diff --git a/main.py b/main.py
index faec1a0..b1dde70 100644
--- a/main.py
+++ b/main.py
@@ -83,7 +83,7 @@ def get_chartdata(tiller_ns, namespace, chart):
     return data
 
 def chartRollback(revision, chart, tiller_ns):
-    command = "/usr/local/bin/helm --tiller-namespace " + tiller_ns + " rollback " + chart + revision # helm2
+    command = "/usr/local/bin/helm --tiller-namespace " + tiller_ns + " rollback " + chart + " " + revision # helm2
     info(f"Running command: {command}")
     try:
         output = check_output(command.split(" "), stderr=STDOUT).decode("utf-8")