diff --git a/build.sh b/build.sh
index 4d0d25f..5fc975e 100755
--- a/build.sh
+++ b/build.sh
@@ -6,6 +6,7 @@ set -x
 export PATH="$PWD/../../tool":$PATH
 
 go run github.com/tailscale/mkctr \
+  --target="flyio" \
   --base="alpine:3.15" \
   --gopaths="tailscale.io/cmd/golink:/tsgo" \
   --tags="latest" \