diff --git a/modules/highlights.nix b/modules/highlights.nix
index b3d4cb3f..fada97f8 100644
--- a/modules/highlights.nix
+++ b/modules/highlights.nix
@@ -12,7 +12,7 @@ with lib; {
       description = "Define highlight groups";
       example = ''
         highlight = {
-          Comment.fg = '#ff0000';
+          Comment.fg = "#ff0000";
         };
       '';
     };
@@ -23,7 +23,7 @@ with lib; {
       description = "Define match groups";
       example = ''
         match = {
-          ExtraWhitespace = '\\s\\+$';
+          ExtraWhitespace = "\\s\\+$";
         };
       '';
     };