diff --git a/src/com/mirantis/mk/Common.groovy b/src/com/mirantis/mk/Common.groovy
index b8e9756..fe82185 100644
--- a/src/com/mirantis/mk/Common.groovy
+++ b/src/com/mirantis/mk/Common.groovy
@@ -1,5 +1,7 @@
 package com.mirantis.mk
 
+import static groovy.json.JsonOutput.prettyPrint
+import static groovy.json.JsonOutput.toJson
 /**
  *
  * Common functions
@@ -87,6 +89,15 @@
 }
 
 /**
+ * Return pretty-printed string representation of given item
+ * @param item item to be pretty-printed (list, map, whatever)
+ * @return pretty-printed string
+ */
+def prettyPrint(item){
+    return prettyPrint(toJson(item)).replace('\\n', System.getProperty('line.separator'))
+}
+
+/**
  * Print informational message
  *
  * @param msg