diff --git a/src/main/java/com/twineworks/kettle/ruby/step/execmodels/SimpleExecutionModel.java b/src/main/java/com/twineworks/kettle/ruby/step/execmodels/SimpleExecutionModel.java
index 1e614dc..ef7dbb0 100644
--- a/src/main/java/com/twineworks/kettle/ruby/step/execmodels/SimpleExecutionModel.java
+++ b/src/main/java/com/twineworks/kettle/ruby/step/execmodels/SimpleExecutionModel.java
@@ -131,8 +131,10 @@ private void setGemHome() {
       File gemHomePath = new File(gemHomeString);
       gemHomePath = gemHomePath.getAbsoluteFile();
 
-      RubyHash configHash = (RubyHash) data.container.parse("require 'rbconfig'; RbConfig::CONFIG").run();
-      configHash.put("default_gem_home", gemHomePath.getAbsolutePath());
+      List<String> extraGemPaths = data.container.getProvider().getRuntime().getInstanceConfig().getExtraGemPaths();
+      extraGemPaths.add(gemHomePath.getAbsolutePath());
+//      RubyHash configHash = (RubyHash) data.container.parse("require 'rbconfig'; RbConfig::CONFIG").run();
+//      configHash.put("default_gem_home", gemHomePath.getAbsolutePath().to);
     }
   }