diff --git a/etc/apport/crashdb.conf b/etc/apport/crashdb.conf
index 7abd2401d..f826b7c2f 100644
--- a/etc/apport/crashdb.conf
+++ b/etc/apport/crashdb.conf
@@ -41,7 +41,7 @@ databases = {
     'debug': {
         # for debugging
         'impl': 'memory',
-        'bug_pattern_url': '/tmp/bugpatterns.xml',
+        'bug_pattern_url': 'file:///tmp/bugpatterns.xml',
         'distro': 'debug'
     },
 }