diff --git a/Makefile.am b/Makefile.am
index fec9800ce7..45f49c7bcf 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -280,6 +280,7 @@ dist_noinst_DATA = guix/tests.scm guix/tests/http.scm
 
 # Auxiliary files for packages.
 AUX_FILES =						\
+  gnu/packages/aux-files/chromium/master-preferences.json		\
   gnu/packages/aux-files/emacs/guix-emacs.el		\
   gnu/packages/aux-files/linux-libre/4.20-arm.conf	\
   gnu/packages/aux-files/linux-libre/4.20-arm64.conf	\