diff --git a/dashboard/builder/env.go b/dashboard/builder/env.go
index 40775a7c..9a27aeaa 100644
--- a/dashboard/builder/env.go
+++ b/dashboard/builder/env.go
@@ -20,6 +20,7 @@ import (
 // to the envv of its subprocesses.
 var extraEnv = []string{
 	"GOARM",
+	"GO386",
 	"CGO_ENABLED",
 
 	// For Unix derivatives.