diff --git a/src/client/ruby/onehost b/src/client/ruby/onehost
index d6a9cf6d05..3b5fd7db80 100755
--- a/src/client/ruby/onehost
+++ b/src/client/ruby/onehost
@@ -278,7 +278,7 @@ when "show"
 
         puts host.template_str
     else
-        puts host.to_xml
+        puts host.to_xml(true)
     end
 
 when "delete"
@@ -322,7 +322,7 @@ when "list"
     else
         hostpool=OpenNebula::HostPool.new(get_one_client)
         hostpool.info
-        puts hostpool.to_xml
+        puts hostpool.to_xml(true)
     end
 
 when "top"
diff --git a/src/client/ruby/oneuser b/src/client/ruby/oneuser
index 8bbeff18ce..e175761b31 100755
--- a/src/client/ruby/oneuser
+++ b/src/client/ruby/oneuser
@@ -202,7 +202,7 @@ when "list"
     else
         userpool=OpenNebula::UserPool.new(get_one_client)
         userpool.info
-        puts userpool.to_xml
+        puts userpool.to_xml(true)
     end
     
 else
diff --git a/src/client/ruby/onevm b/src/client/ruby/onevm
index 9e40e67632..43135f2314 100755
--- a/src/client/ruby/onevm
+++ b/src/client/ruby/onevm
@@ -633,7 +633,7 @@ when "list"
         vmpool=OpenNebula::VirtualMachinePool.new(get_one_client,
             ops[:filter_user].to_i)
         vmpool.info
-        puts vmpool.to_xml
+        puts vmpool.to_xml(true)
     end
     
 when "top"
@@ -718,7 +718,7 @@ when "show"
         
             puts vm.template_str
         else
-            puts vm.to_xml
+            puts vm.to_xml(true)
         end
      end
 else
diff --git a/src/client/ruby/onevnet b/src/client/ruby/onevnet
index 55171dcbd6..8baa6bed24 100755
--- a/src/client/ruby/onevnet
+++ b/src/client/ruby/onevnet
@@ -236,7 +236,7 @@ when "show"
                     puts leases_str
                 end
             else
-                puts vn.to_xml
+                puts vn.to_xml(true)
             end
         else
             puts "Error: "+result.message
@@ -286,7 +286,7 @@ when "list"
         vnpool=OpenNebula::VirtualNetworkPool.new(get_one_client,
             filter_flag.to_i)
         vnpool.info
-        puts vnpool.to_xml
+        puts vnpool.to_xml(true)
     end
     
 else
diff --git a/src/oca/ruby/OpenNebula/XMLUtils.rb b/src/oca/ruby/OpenNebula/XMLUtils.rb
index b481c5f730..6ee470d0f3 100644
--- a/src/oca/ruby/OpenNebula/XMLUtils.rb
+++ b/src/oca/ruby/OpenNebula/XMLUtils.rb
@@ -104,12 +104,16 @@ module OpenNebula
             return @hash
         end
 
-        def to_xml
+        def to_xml(pretty=false)
             if NOKOGIRI
                 @xml.to_xml
             else
                 str = ""
-                REXML::Formatters::Pretty.new(1).write(@xml,str)
+                if pretty
+                    REXML::Formatters::Pretty.new(1).write(@xml,str)
+                else 
+                    REXML::Formatters::Default.new.write(@xml,str)
+                end
                 str
             end
         end
@@ -149,12 +153,16 @@ module OpenNebula
             end
         end
 
-        def to_xml
+        def to_xml(pretty=false)
             if NOKOGIRI
                 @xml.to_xml
             else
                 str = ""
-                REXML::Formatters::Pretty.new(1).write(@xml,str)
+                if pretty
+                    REXML::Formatters::Pretty.new(1).write(@xml,str)
+                else 
+                    REXML::Formatters::Default.new.write(@xml,str)
+                end
                 str
             end
         end