diff --git a/pentadactyl/install.rdf b/pentadactyl/install.rdf
index 663c7ce4..695d7d57 100644
--- a/pentadactyl/install.rdf
+++ b/pentadactyl/install.rdf
@@ -31,7 +31,7 @@
 
         <em:targetApplication>
             <Description
-                em:id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
+                em:id="{8de7fcbb-c55c-4fbe-bfc5-fc555c87dbc4}"
                 em:minVersion="27.0"
                 em:maxVersion="50.*"/>
         </em:targetApplication>