diff --git a/build.go b/build.go
index 9cb911a5179..b0daa7d972a 100644
--- a/build.go
+++ b/build.go
@@ -342,9 +342,6 @@ func setBuildEnv() {
 	} else {
 		os.Setenv("GOARCH", goarch)
 	}
-	if goarch == "386" {
-		os.Setenv("GO386", "387")
-	}
 	if cgo {
 		os.Setenv("CGO_ENABLED", "1")
 	}