diff --git a/Dockerfile.ci b/Dockerfile.ci
index 3a2e600d6b..a5002c387c 100644
--- a/Dockerfile.ci
+++ b/Dockerfile.ci
@@ -1,4 +1,3 @@
-ARG BUILDPLATFORM
 FROM --platform=$BUILDPLATFORM golang:1.19 AS build-env
 
 ARG GOPROXY