diff --git a/local.mk b/local.mk
index c48857f24b..5cdba4d332 100644
--- a/local.mk
+++ b/local.mk
@@ -2,6 +2,6 @@ ifeq ($(MAKECMDGOALS), dist)
   dist-files += $(shell git ls-files) $(shell git ls-files)
 endif
 
-dist-files += configure config.h.in
+dist-files += configure config.h.in nix.spec
 
 GLOBAL_CXXFLAGS += -I . -I src -I src/libutil -I src/libstore -I src/libmain -I src/libexpr