diff --git a/debian/patches/fix-mail-room-path.patch b/debian/patches/fix-mail-room-path.patch
new file mode 100644
index 0000000000..0eab53fc1d
--- /dev/null
+++ b/debian/patches/fix-mail-room-path.patch
@@ -0,0 +1,10 @@
+--- a/config/mail_room.yml
++++ b/config/mail_room.yml
+@@ -1,6 +1,6 @@
+ :mailboxes:
+   <%
+-    require_relative "../lib/gitlab/mail_room" unless defined?(Gitlab::MailRoom)
++    require "/usr/share/gitlab/lib/gitlab/mail_room" unless defined?(Gitlab::MailRoom)
+     config = Gitlab::MailRoom.config
+ 
+     if Gitlab::MailRoom.enabled?
diff --git a/debian/patches/series b/debian/patches/series
index 1d1e0d288c..3dd71e4920 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -15,3 +15,4 @@ pid-log-paths.patch
 0410-set-webpack-root.patch
 0420-use-system-libs.patch
 add-system-lib-path-for-webpack.patch
+fix-mail-room-path.patch