diff --git a/RuleWidget.launch b/RuleWidget.launch
index 6098c85..6636152 100644
--- a/RuleWidget.launch
+++ b/RuleWidget.launch
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <launchConfiguration type="com.google.gdt.eclipse.suite.webapp">
-<stringAttribute key="com.google.gdt.eclipse.suiteMainTypeProcessor.PREVIOUSLY_SET_MAIN_TYPE_NAME" value="com.google.gwt.dev.DevMode"/>
+<stringAttribute key="com.google.gdt.eclipse.suiteMainTypeProcessor.PREVIOUSLY_SET_MAIN_TYPE_NAME" value="com.google.gwt.dev.GWTShell"/>
 <booleanAttribute key="com.google.gdt.eclipse.suiteWarArgumentProcessor.IS_WAR_FROM_PROJECT_PROPERTIES" value="false"/>
 <stringAttribute key="com.google.gwt.eclipse.core.URL" value="RuleWidget.html"/>
 <listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
@@ -10,8 +10,8 @@
 <listEntry value="4"/>
 </listAttribute>
 <stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="com.google.gdt.eclipse.maven.mavenClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="com.google.gwt.dev.DevMode"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROGRAM_ARGUMENTS" value="-startupUrl RuleWidget.html -war -remoteUI &quot;${gwt_remote_ui_server_port}:${unique_id}&quot; -logLevel INFO -codeServerPort 9997 -port 8888 org.gcube.portlets.user.td.rulewidget.RuleWidget"/>
+<stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="com.google.gwt.dev.GWTShell"/>
+<stringAttribute key="org.eclipse.jdt.launching.PROGRAM_ARGUMENTS" value="-war -remoteUI &quot;${gwt_remote_ui_server_port}:${unique_id}&quot; -logLevel INFO -codeServerPort 9997 -port 8888 org.gcube.portlets.user.td.rulewidget.RuleWidget RuleWidget.html"/>
 <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="tabular-data-rule-widget"/>
 <stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xmx512m -Dgwt.nowarn.legacy.tools"/>
 </launchConfiguration>