diff --git a/Makefile b/Makefile
index dfe5b5f3..b4e289ed 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,9 @@
 BIN_IMAGE = blockbook-build
 DEB_IMAGE = blockbook-build-deb
 PACKAGER = $(shell id -u):$(shell id -g)
-BASE_IMAGE = $$(awk -F= '$$1=="ID" { print $$2 ;}' /etc/os-release):$$(awk -F= '$$1=="VERSION_ID" { print $$2 ;}' /etc/os-release | tr -d '"')
+BASE_IMAGE ?= $$(awk -F= '$$1=="ID" { print $$2 ;}' /etc/os-release):$$(awk -F= '$$1=="VERSION_ID" { print $$2 ;}' /etc/os-release | tr -d '"')
 NO_CACHE = false
-TCMALLOC = 
+TCMALLOC =
 PORTABLE = 0
 ARGS ?=