diff --git a/de.prob.units/plugin.xml b/de.prob.units/plugin.xml
index 272fdf81c5940513d9a249ba8dc5435f03b81064..4656bfef75443c19efa4961d7bf3fd4d2196ec2c 100644
--- a/de.prob.units/plugin.xml
+++ b/de.prob.units/plugin.xml
@@ -54,22 +54,6 @@
          <separator
                name="de.prob.units.separator2"
                visible="true">
-                           <visibleWhen>
-               <with
-                     variable="selection">
-                  <iterate
-                        operator="or">
-                     <or>
-                        <instanceof
-                              value="org.eventb.core.IMachineRoot">
-                        </instanceof>
-                        <instanceof
-                              value="org.eventb.core.IContextRoot">
-                        </instanceof>
-                     </or>
-                  </iterate>
-               </with>
-            </visibleWhen>
          </separator>
          <command
                commandId="de.prob.units.startunitanalysis"
@@ -96,22 +80,6 @@
          <separator
                name="de.prob.units.separator1"
                visible="true">
-                           <visibleWhen>
-               <with
-                     variable="selection">
-                  <iterate
-                        operator="or">
-                     <or>
-                        <instanceof
-                              value="org.eventb.core.IMachineRoot">
-                        </instanceof>
-                        <instanceof
-                              value="org.eventb.core.IContextRoot">
-                        </instanceof>
-                     </or>
-                  </iterate>
-               </with>
-            </visibleWhen>
          </separator>
       </menuContribution>
    </extension>