diff --git a/mod/scorm/lib.php b/mod/scorm/lib.php
index aa5f319bdac..5f3ffded74a 100644
--- a/mod/scorm/lib.php
+++ b/mod/scorm/lib.php
@@ -950,6 +950,7 @@ function scorm_pluginfile($course, $cm, $context, $filearea, $args, $forcedownlo
         if (!has_capability('moodle/course:manageactivities', $context)) {
             return false;
         }
+        $revision = (int)array_shift($args); // Prevents caching problems - ignored here.
         $relativepath = implode('/', $args);
         $fullpath = "/$context->id/mod_scorm/package/0/$relativepath";
         $lifetime = 0; // No caching here.