diff --git a/packages/babel/src/generation/buffer.js b/packages/babel/src/generation/buffer.js
index c6fe97f37f..e3cb6e25c4 100644
--- a/packages/babel/src/generation/buffer.js
+++ b/packages/babel/src/generation/buffer.js
@@ -264,7 +264,7 @@ export default class Buffer {
 
         this.parenPushNewlineState = null;
 
-        if (cha === "\n") {
+        if (cha === "\n" || cha === "/") {
           // we're going to break this terminator expression so we need to add a parentheses
           this._push("(");
           this.indent();