diff --git a/src/main/resources/Domain_Opendial_Ella.xml b/src/main/resources/Domain_Opendial_Ella.xml
index 4164381..91270cd 100644
--- a/src/main/resources/Domain_Opendial_Ella.xml
+++ b/src/main/resources/Domain_Opendial_Ella.xml
@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <domain>
 
+<!-- Register ModuleElla as external module (http://www.opendial-toolkit.net/user-manual/external-modules) -->
+<settings>
+<modules>ModuleElla</modules>
+</settings>
+
 <initialstate>	
 		<variable id="u_m">
 			<value>Welcome!</value>
@@ -418,7 +423,7 @@
 				<condition>
 					<if var="a_m" value="AskRepeat" />
 				</condition>
-				<effect prob="0.6">
+				<effect prob="0.95">
 					<set var="a_u^p" value="{a_u}" />
 				</effect>
 			</case>