diff --git a/test/css/strings.css b/test/css/strings.css
index 5a29661c..80e115c0 100644
--- a/test/css/strings.css
+++ b/test/css/strings.css
@@ -4,6 +4,8 @@
   content: "#*%:&^,)!.(~*})";
   empty: "";
   brackets: "{" "}";
+  escapes: "\"hello\" \\world";
+  escapes2: "\"llo";
 }
 #comments {
   content: "/* hello */ // not-so-secret";
diff --git a/test/less/strings.less b/test/less/strings.less
index 026d2202..b6fd856a 100644
--- a/test/less/strings.less
+++ b/test/less/strings.less
@@ -4,6 +4,8 @@
   content: "#*%:&^,)!.(~*})";
   empty: "";
   brackets: "{" "}";
+  escapes: "\"hello\" \\world";
+  escapes2: "\"llo";
 }
 #comments {
   content: "/* hello */ // not-so-secret";