diff --git a/Makefile b/Makefile
index cff1068c0..f3484eb54 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ all: fmt gen lint build test
 .PHONY: fmt
 fmt:
 	# Unset GITHUB_TOKEN, see https://github.com/terrastruct/d2/commit/335d925b7c937d4e7cac7e26de993f60840eb116#commitcomment-98101131
-	GITHUB_TOKEN= prefix "$@" ./ci/sub/bin/fmt.sh
+	prefix "$@" GITHUB_TOKEN= ./ci/sub/bin/fmt.sh
 .PHONY: gen
 gen:
 	prefix "$@" ./ci/gen.sh