diff --git a/Makefile b/Makefile
index e5da75616..bbf8fdbd8 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,6 @@ version?=$(shell grep '^[Vv]ersion:' pandoc.cabal | awk '{print $$2;}')
 pandoc=$(shell find dist -name pandoc -type f -exec ls -t {} \; | head -1)
 SOURCEFILES?=$(shell git ls-tree -r master --name-only | grep "\.hs$$")
 BRANCH?=master
-ARCH=$(shell uname -m)
 DOCKERIMAGE=registry.gitlab.b-data.ch/ghc/ghc4pandoc:8.10.4
 COMMIT=$(shell git rev-parse --short HEAD)
 TIMESTAMP=$(shell date "+%Y%m%d_%H%M")