diff --git a/packages/pretty-format/src/index.js b/packages/pretty-format/src/index.js
index af3f32be8011..b0c2c4b0d078 100644
--- a/packages/pretty-format/src/index.js
+++ b/packages/pretty-format/src/index.js
@@ -106,7 +106,8 @@ function printBasicValue(
     return printNumber(val);
   }
   if (typeOf === 'string') {
-    return /\r\n|\n|\r/g.test(val)
+    console.log(/\r\n?|\n/gm.test(val), val); // debug windows
+    return /\r\n?|\n/gm.test(val)
       ? '`' + val.replace(/\\/g, '\\$&') + '`'
       : '"' + val.replace(/"|\\/g, '\\$&') + '"';
   }