diff --git a/src/oca/ruby/OpenNebula/Image.rb b/src/oca/ruby/OpenNebula/Image.rb
index 38762a5f46..965f4d333f 100644
--- a/src/oca/ruby/OpenNebula/Image.rb
+++ b/src/oca/ruby/OpenNebula/Image.rb
@@ -116,7 +116,7 @@ module OpenNebula
         end
 
         # Makes the Image non persistent
-        def unpublish
+        def nonpersistent
             set_persistent(false)
         end