diff --git a/mozilla/mailnews/base/search/resources/content/searchTermOverlay.js b/mozilla/mailnews/base/search/resources/content/searchTermOverlay.js
index 8a1ab24bad2..87b807c9a45 100644
--- a/mozilla/mailnews/base/search/resources/content/searchTermOverlay.js
+++ b/mozilla/mailnews/base/search/resources/content/searchTermOverlay.js
@@ -208,7 +208,7 @@ function booleanChanged(event) {
         (event.target.getAttribute("data") == "and") ? true : false;
     for (var i=0; i<gSearchTerms.length; i++) {
         var searchTerm = gSearchTerms[i];
-        gSearchTerms.booleanAnd = newBoolValue;
+        searchTerm.booleanAnd = newBoolValue;
     }
     dump("Boolean is now " + event.target.data + "\n");
 }