diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 19a6b58b..ab6aa6d0 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -255,8 +255,8 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
       return func.name;
     }
 
-    var matches = func.toString().match(/^\s*function\s*(\w*)\s*\(/) ||
-      func.toString().match(/^\s*\[object\s*(\w*)Constructor\]/);
+    var matches = func.toString().match(/^\s*function\s*(\w+)\s*\(/) ||
+      func.toString().match(/^\s*\[object\s*(\w+)Constructor\]/);
 
     return matches ? matches[1] : '<anonymous>';
   };
diff --git a/src/core/base.js b/src/core/base.js
index a587c8dd..1f0f97d0 100644
--- a/src/core/base.js
+++ b/src/core/base.js
@@ -121,8 +121,8 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
       return func.name;
     }
 
-    var matches = func.toString().match(/^\s*function\s*(\w*)\s*\(/) ||
-      func.toString().match(/^\s*\[object\s*(\w*)Constructor\]/);
+    var matches = func.toString().match(/^\s*function\s*(\w+)\s*\(/) ||
+      func.toString().match(/^\s*\[object\s*(\w+)Constructor\]/);
 
     return matches ? matches[1] : '<anonymous>';
   };