diff --git a/src/languages/r.js b/src/languages/r.js
index f146b3261c..7f37d2d96e 100644
--- a/src/languages/r.js
+++ b/src/languages/r.js
@@ -4,7 +4,7 @@ export default {
 	grammar: {
 		'comment': /#.*/,
 		'string': {
-			pattern: /(['"])(?:\\.|(?!\1)[^\\\r\n])*\1/,
+            pattern: /(['"])(?:\\.|(?!\1)[^\\])*\1/,
 			greedy: true,
 		},
 		'percent-operator': {