diff --git a/lib/assert/error.js b/lib/assert/error.js
index cb1d67b..5087805 100644
--- a/lib/assert/error.js
+++ b/lib/assert/error.js
@@ -75,6 +75,11 @@ function errorDiff(err, type) {
   }).join('');
 }
 
+function extractPathFromStack(stack) {
+    var regex = /\((.*?[a-zA-Z0-9._-]+\.(?:js|coffee))(:\d+):\d+\)/;
+    return stack.match(regex);
+}
+
 /*
  Do not override .toString() when this.stack is used,
  otherwise this will end in an endless recursive call...
@@ -85,7 +90,7 @@ require('assert').AssertionError.prototype.toStringEx = function () {
         source;
 
     if (this.stack) {
-        source = this.stack.match(/([a-zA-Z0-9._-]+\.(?:js|coffee))(:\d+):\d+/);
+        source = extractPathFromStack(this.stack);
     }
 
     function parse(str) {
diff --git a/test/assert-test.js b/test/assert-test.js
index fb30eb2..c79f1ff 100644
--- a/test/assert-test.js
+++ b/test/assert-test.js
@@ -130,7 +130,21 @@ vows.describe('vows/assert').addBatch({
             assert.notIncludes([1, 2, 3], 4);
             assert.notIncludes({"red": 1, "blue": 2}, "green");
         }
-    }
+    },
+
+    'An AssertionError': {
+        topic: function generateAssertionError() {
+            try {
+                assert.isFalse(true);
+            } catch (e) {
+                return e.toString();
+            }
+        },
+        'should have full path in stack trace': function(topic) {
+            var regexp = new RegExp("// " + __filename + ":\\d+");
+            assert.isTrue(regexp.test(topic));
+        }
+    },
 }).export(module);
 
 function assertError(assertion, args, fail) {