diff --git a/browser/installer/package-manifest.in b/browser/installer/package-manifest.in
index 5448462220..11f7bf04c8 100644
--- a/browser/installer/package-manifest.in
+++ b/browser/installer/package-manifest.in
@@ -627,6 +627,7 @@
 ; All the pref files must be part of base to prevent migration bugs
 @RESPATH@/browser/@PREF_DIR@/basilisk.js
 @RESPATH@/browser/@PREF_DIR@/basilisk-branding.js
+@RESPATH@/browser/@PREF_DIR@/internaluserscripts.js
 @RESPATH@/goanna.js
 @RESPATH@/defaults/autoconfig/prefcalls.js
 @RESPATH@/browser/defaults/permissions