diff --git a/mktypes.sh b/mktypes.sh
index 3b722f9..9d8cf8e 100644
--- a/mktypes.sh
+++ b/mktypes.sh
@@ -4,7 +4,6 @@ PKGS="cpu disk docker host load mem net process"
 
 GOOS=$(go env GOOS)
 GOARCH=$(go env GOARCH)
-GOARCH=$(go env GOARCH)
 
 for DIR in . v3
 do