diff --git a/lib/make/text.js b/lib/make/text.js
index f243322..3acf2c7 100644
--- a/lib/make/text.js
+++ b/lib/make/text.js
@@ -174,7 +174,7 @@ make.text = {
   },
   assignmentOperator: function () {
     return random.pick([
-      '=', '-=', '+=', '*=', '/='
+      '=', '+=', '-=', '*=', '/=', '%=', '**=', '<<=', '>>=', '>>>=', '&=', '^=', '|='
     ])
   },
   arithmeticOperator: function () {