--- a/devtools/client/webconsole/webconsole.js
+++ b/devtools/client/webconsole/webconsole.js
@@ -1060,16 +1060,18 @@ WebConsoleFrame.prototype = {
 
       // if the text matches the words in aSearchString...
       if (this.stringMatchesFilters(text, searchString)) {
         node.classList.remove("filtered-by-string");
       } else {
         node.classList.add("filtered-by-string");
       }
     }
+
+    this.resize();
   },
 
   /**
    * Applies the user's filters to a newly-created message node via CSS
    * classes.
    *
    * @param nsIDOMNode node
    *        The newly-created message node.