diff --git a/lib/globule.js b/lib/globule.js
index 5a3eeac..5a904ff 100644
--- a/lib/globule.js
+++ b/lib/globule.js
@@ -31,9 +31,9 @@ function processPatterns(patterns, options, fn) {
     }
     // The first character is ! (exclusion). Remove any filepaths from the
     // result set that match this pattern, sans leading !.
-    var filterFn = minimatch.filter(pattern.slice(1), options);
+    var filterFn = minimatch.filter(path.resolve(pattern.slice(1)), options);
     result = _.filter(result, function(filepath) {
-      return !filterFn(filepath);
+      return !filterFn(path.resolve(filepath));
     });
   });
   return result;
diff --git a/test/globule_test.js b/test/globule_test.js
index 4b921ea..31ad19e 100644
--- a/test/globule_test.js
+++ b/test/globule_test.js
@@ -209,6 +209,13 @@ exports['find'] = {
       'inclusion / exclusion order matters');
     test.done();
   },
+  'exclusion against relative paths': function (test) {
+    test.expect(1);
+    test.deepEqual(globule.find('../../fixtures/expand/js/*.js', 'css/**/*.css', '!**/js/**', '!**/css/**/qux.css'), [
+      'css/baz.css'],
+        'exclusion rules should be properly evaluated against relative filepaths');
+    test.done();
+  },
   'options.src': function(test) {
     test.expect(4);
     test.deepEqual(globule.find({src: '**/*.js'}), ['js/bar.js', 'js/foo.js'], 'single pattern argument should match.');