diff --git a/make/projects-dir.mk b/make/projects-dir.mk
index 56ae4a7a..4365faf7 100644
--- a/make/projects-dir.mk
+++ b/make/projects-dir.mk
@@ -261,7 +261,7 @@ pkg-init-%:
 	$(CREATE_PROJECT_SH) $*
 
 pkg-%install: $(filter-out $(UNAVAILABLE_TARGETS),pull.done)
-	$(JW_PKG_PY_BUILD) --source-profile=replace $@ $(TARGET_PROJECTS)
+	$(JW_PKG_PY_BUILD) --env-reinit --env-keep=SSH_AUTH_SOCK $@ $(TARGET_PROJECTS)
 
 pkg-%: $(filter-out $(UNAVAILABLE_TARGETS),pull.done)
 	$(JW_PKG_PY_BUILD) $@ $(TARGET_PROJECTS)