diff --git a/content/prefpane.xul b/content/prefpane.xul
index 9966670..9d1c325 100644
--- a/content/prefpane.xul
+++ b/content/prefpane.xul
@@ -32,7 +32,7 @@
 					/>
 			</preferences>
 
-			<deck id="acPluginsDeck">
+			<deck id="acPluginsDeck" flex="1">
         <groupbox>
 					<caption label="&ac.plugins;"/>
 					<richlistbox