diff --git a/mozilla/extensions/inspector/install.rdf b/mozilla/extensions/inspector/install.rdf
index db0382685c5..b9caa52b8b7 100644
--- a/mozilla/extensions/inspector/install.rdf
+++ b/mozilla/extensions/inspector/install.rdf
@@ -49,7 +49,7 @@
       <Description>
         <em:id>toolkit@mozilla.org</em:id>
         <em:minVersion>1.9a1</em:minVersion>
-        <em:maxVersion>1.9</em:maxVersion>
+        <em:maxVersion>1.9.0.*</em:maxVersion>
       </Description>
     </em:targetApplication>