diff --git a/src/org/pentaho/platform/dataaccess/datasource/wizard/GwtDatasourceEditorEntryPoint.java b/src/org/pentaho/platform/dataaccess/datasource/wizard/GwtDatasourceEditorEntryPoint.java
index 975fda393..26baa7583 100644
--- a/src/org/pentaho/platform/dataaccess/datasource/wizard/GwtDatasourceEditorEntryPoint.java
+++ b/src/org/pentaho/platform/dataaccess/datasource/wizard/GwtDatasourceEditorEntryPoint.java
@@ -171,6 +171,7 @@ public void error(String message, Throwable error) {
 
           RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
           builder.setHeader("accept", "application/json");
+          builder.setHeader("Pragma", "no-cache");
 
           try {
               builder.sendRequest(null, new RequestCallback() {