1 files changed, 3 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index f1e8fbe..29705dc 100644
--- a/Makefile
+++ b/Makefile
@@ -7,13 +7,16 @@
 -include Makefile.local
 
 GUIX ?= guix
+export GUIX
 
 # Almost all commands in this Makefilo are run through `guix time-machine` with
 # Guix revision fixed to the one from the commit below. This ensures that the
 # same working environment is always used.
 GUIX_COMMIT ?= a86979b41a49a8fcdaa887970ba594dbba701226
+export GUIX_COMMIT
 
 GUIX_TM ?= $(GUIX) time-machine --commit=$(GUIX_COMMIT) --
+export GUIX_TM
 
 GUIX_LOAD_PATHS = $$(                                 \
 	find subrepos/ -mindepth 1 -maxdepth 1        \