diff --git a/content/liberator.js b/content/liberator.js
index bc7a3e24..58646992 100644
--- a/content/liberator.js
+++ b/content/liberator.js
@@ -659,7 +659,8 @@ const liberator = (function () //{{{
         // partial sixth level expression evaluation
         // TODO: what is that really needed for, and where could it be used?
         //       Or should it be removed? (c) Viktor
-        eval: function (string)
+        //       Better name?  See other liberator.eval()
+        evalExpression: function (string)
         {
             string = string.toString().replace(/^\s*/, "").replace(/\s*$/, "");
             var matches = string.match(/^&(\w+)/);
diff --git a/content/options.js b/content/options.js
index c0d6cc0f..41cfad4c 100644
--- a/content/options.js
+++ b/content/options.js
@@ -268,7 +268,7 @@ liberator.Options = function () //{{{
                         return;
                     }
 
-                    var expr = liberator.eval(matches[4]);
+                    var expr = liberator.evalExpression(matches[4]);
                     if (typeof expr === undefined)
                     {
                         liberator.echoerr("E15: Invalid expression: " + matches[4]);