add wasm target to others
diff --git a/isatty_others.go b/isatty_others.go
index ff714a3..3eba4cb 100644
--- a/isatty_others.go
+++ b/isatty_others.go
@@ -1,4 +1,4 @@
-// +build appengine js nacl
+// +build appengine js nacl wasm
 
 package isatty