diff --git a/mod/wiki/locallib.php b/mod/wiki/locallib.php
index b06909e896e..b5e5cdbd328 100644
--- a/mod/wiki/locallib.php
+++ b/mod/wiki/locallib.php
@@ -736,9 +736,6 @@ function wiki_parser_real_path($url, $context, $component, $filearea, $swid) {
     } else {
 
         $file = 'pluginfile.php';
-        if (!$CFG->slasharguments) {
-            $file = $file . '?file=';
-        }
         $baseurl = "$CFG->wwwroot/$file/{$context->id}/$component/$filearea/$swid/";
         // it is a file in current file area
         return $baseurl . $url;
diff --git a/mod/wiki/tests/lib_test.php b/mod/wiki/tests/lib_test.php
index 69a495297a7..adf0e2bc136 100644
--- a/mod/wiki/tests/lib_test.php
+++ b/mod/wiki/tests/lib_test.php
@@ -922,4 +922,26 @@ class lib_test extends \advanced_testcase {
 
         return \calendar_event::create($event);
     }
+
+    /**
+     * Tests the wiki_parser_real_path function to ensure it correctly resolves URLs.
+     *
+     * @covers ::wiki_parser_real_path()
+     */
+    public function test_wiki_parser_real_path(): void {
+        global $CFG;
+        $this->resetAfterTest();
+
+        // Create the activity.
+        $course = $this->getDataGenerator()->create_course(['enablecompletion' => 1]);
+        $wiki = $this->getDataGenerator()->create_module('wiki', ['course' => $course->id]);
+        $context = \context_module::instance($wiki->cmid);
+
+        $moodleurl = new \moodle_url('/mod/wiki/view.php', ['id' => 2]);
+        $url = wiki_parser_real_path($moodleurl->out(), $context, 'mod_wiki', 'attachments', 3);
+        $this->assertSame("{$CFG->wwwroot}/mod/wiki/view.php?id=2", $url);
+
+        $url = wiki_parser_real_path('mod/wiki/view.php?id=2', $context, 'mod_wiki', 'attachments', 3);
+        $this->assertSame("{$CFG->wwwroot}/pluginfile.php/{$context->id}/mod_wiki/attachments/3/mod/wiki/view.php?id=2", $url);
+    }
 }