diff --git a/python/Makefile b/python/Makefile
index 043cdf40fc..f3fd0493a8 100644
--- a/python/Makefile
+++ b/python/Makefile
@@ -5,7 +5,7 @@ DEPLOY_PYTHON := $(CURDIR)/deploy.sh
 .PHONY: deploy
 
 ifneq ($(HAS_NIX),)
-DEPLOY_COMMAND := nix-shell ../default.nix --pure	--run "SBP_VERSION=$(SBP_VERSION) $(DEPLOY_PYTHON)"
+DEPLOY_COMMAND := nix-shell ../default.nix --pure	--run "PYPI_USERNAME=$(PYPI_USERNAME) PYPI_PASSWORD=$(PYPI_PASSWORD) SBP_VERSION=$(SBP_VERSION) $(DEPLOY_PYTHON)"
 else
 DEPLOY_COMMAND := SBP_VERSION=$(SBP_VERSION) $(SHELL) $(DEPLOY_PYTHON)
 endif