diff --git a/lib/tests/weblib_test.php b/lib/tests/weblib_test.php
index ab5f019c970..513ee7b43ba 100644
--- a/lib/tests/weblib_test.php
+++ b/lib/tests/weblib_test.php
@@ -285,6 +285,16 @@ class core_weblib_testcase extends advanced_testcase {
         $this->assertTrue($url1->compare($url2, URL_MATCH_BASE));
         $this->assertTrue($url1->compare($url2, URL_MATCH_PARAMS));
         $this->assertTrue($url1->compare($url2, URL_MATCH_EXACT));
+
+        $url1->set_anchor('test');
+        $this->assertTrue($url1->compare($url2, URL_MATCH_BASE));
+        $this->assertTrue($url1->compare($url2, URL_MATCH_PARAMS));
+        $this->assertFalse($url1->compare($url2, URL_MATCH_EXACT));
+
+        $url2->set_anchor('test');
+        $this->assertTrue($url1->compare($url2, URL_MATCH_BASE));
+        $this->assertTrue($url1->compare($url2, URL_MATCH_PARAMS));
+        $this->assertTrue($url1->compare($url2, URL_MATCH_EXACT));
     }
 
     public function test_out_as_local_url() {
diff --git a/lib/weblib.php b/lib/weblib.php
index ee5b31a12b0..dd91f8d2edd 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -646,6 +646,10 @@ class moodle_url {
             }
         }
 
+        if ($url->anchor !== $this->anchor) {
+            return false;
+        }
+
         return true;
     }