diff --git a/Dockerfile b/Dockerfile
index b4b95a5..273a1b8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,7 @@ ADD links.tar.gz /
 ADD passwd /etc/passwd
 ADD passwd /tmp/proot/delete-me
 
+ENV GUIX_LOCPATH=/guix-builder/lib/locale
 ENV PROOT_TMP_DIR=/tmp/proot
 RUN rm /tmp/proot/delete-me
 
diff --git a/Makefile b/Makefile
index 68bbbf7..cfcafbd 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,7 @@ $(LINKS_TARBALL):
 	rm bin
 
 $(TARBALL):
-	@cp $$(guix pack -RR -S /bin=bin -S /etc/ssl=etc/ssl -m $(GUIX_MANIFEST)) $@
+	@cp $$(guix pack -RR -S /bin=bin -S /etc/ssl=etc/ssl -S /lib/locale=lib/locale -m $(GUIX_MANIFEST)) $@
 	@chmod +w $@
 
 .PHONY: build