diff --git a/build.assets/Makefile b/build.assets/Makefile
index 9ae9eacf515f..8b633a6f8f75 100644
--- a/build.assets/Makefile
+++ b/build.assets/Makefile
@@ -8,7 +8,7 @@ HOSTNAME=buildbox
 SRCDIR=/go/src/github.com/gravitational/teleport
 GOMODCACHE ?= /tmp/gomodcache
 # TODO(hugoShaka) remove HELM_PLUGINS with teleport13 buildbox
-DOCKERFLAGS := --rm=true -v "$$(pwd)/../":$(SRCDIR) -v /tmp:/tmp -w $(SRCDIR) -h $(HOSTNAME) -e GOMODCACHE=$(GOMODCACHE) -e HELM_PLUGINS=/home/ci/.local/share/helm/plugins-new
+DOCKERFLAGS := --rm=true -v "$$(pwd)/../":$(SRCDIR) -v /tmp:/tmp -w $(SRCDIR) -h $(HOSTNAME) -e GOMODCACHE=$(GOMODCACHE) -e HELM_PLUGINS=/home/ci/.local/share/helm/plugins-new -e MAKEFLAGS
 # Teleport version - some targets require this to be set
 VERSION ?= $(shell egrep ^VERSION ../Makefile | cut -d= -f2)