diff --git a/test/Makefile.in b/test/Makefile.in
index cb64f6abb77..11373db8ca9 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -148,7 +148,7 @@ endif
 	$(AM_V_at)${MKDIR_P} $(dir $@)
 	$(AM_V_GEN)HOME=/nonexistent $(emacs) -l ert -l $(testloadfile) \
 	  --eval "(ert-run-tests-batch-and-exit ${SELECTOR_ACTUAL})" \
-	  $(if $(and ${HOST}, $(findstring tramp, $(testloadfile))), , ${WRITE_LOG})
+	  $(if $(and ${NIX_STORE}, $(findstring tramp, $(testloadfile))), , ${WRITE_LOG})
 
 ifeq (@HAVE_MODULES@, yes)
 maybe_exclude_module_tests :=