diff --git a/src/oca/ruby/OpenNebula/Document.rb b/src/oca/ruby/OpenNebula/Document.rb
index 99092fb54d..494ebcf3dd 100644
--- a/src/oca/ruby/OpenNebula/Document.rb
+++ b/src/oca/ruby/OpenNebula/Document.rb
@@ -108,7 +108,7 @@ module OpenNebula
         # @return [nil, OpenNebula::Error] nil in case of success, Error
         #   otherwise
         def delete()
-            rc = info()
+            rc = check_type()
             return rc if OpenNebula.is_error?(rc)
 
             return call(DOCUMENT_METHODS[:delete], @pe_id)
@@ -121,7 +121,7 @@ module OpenNebula
         # @return [nil, OpenNebula::Error] nil in case of success, Error
         #   otherwise
         def update(new_template)
-            rc = info()
+            rc = check_type()
             return rc if OpenNebula.is_error?(rc)
 
             super(DOCUMENT_METHODS[:update], new_template)
@@ -135,7 +135,7 @@ module OpenNebula
         # @return [nil, OpenNebula::Error] nil in case of success, Error
         #   otherwise
         def chown(uid, gid)
-            rc = info()
+            rc = check_type()
             return rc if OpenNebula.is_error?(rc)
 
             super(DOCUMENT_METHODS[:chown], uid, gid)
@@ -148,7 +148,7 @@ module OpenNebula
         # @return [nil, OpenNebula::Error] nil in case of success, Error
         #   otherwise
         def chmod_octet(octet)
-            rc = info()
+            rc = check_type()
             return rc if OpenNebula.is_error?(rc)
 
             super(DOCUMENT_METHODS[:chmod], octet)
@@ -161,7 +161,7 @@ module OpenNebula
         #   otherwise
         def chmod(owner_u, owner_m, owner_a, group_u, group_m, group_a, other_u,
                 other_m, other_a)
-            rc = info()
+            rc = check_type()
             return rc if OpenNebula.is_error?(rc)
 
             super(DOCUMENT_METHODS[:chmod], owner_u, owner_m, owner_a, group_u,
@@ -175,7 +175,7 @@ module OpenNebula
         # @return [Integer, OpenNebula::Error] The new Document ID in case
         #   of success, Error otherwise
         def clone(name)
-            rc = info()
+            rc = check_type()
             return rc if OpenNebula.is_error?(rc)
 
             return Error.new('ID not defined') if !@pe_id
@@ -222,5 +222,27 @@ module OpenNebula
 
             chmod(-1, -1, -1, group_u, -1, -1, -1, -1, -1)
         end
+
+        def check_type()
+            type = self['TYPE']
+
+            if type.nil? && @pe_id
+                rc = @client.call(DOCUMENT_METHODS[:info], @pe_id)
+
+                return rc if OpenNebula.is_error?(rc)
+
+                xmldoc = XMLElement.new
+                xmldoc.initialize_xml(rc, 'DOCUMENT')
+
+                type = xmldoc['TYPE']
+            end
+
+            if !type.nil? && type.to_i != document_type
+                return OpenNebula::Error.new(
+                    "[DocumentInfo] Error getting document [#{@pe_id}].")
+            end
+
+            return nil
+        end
     end
 end