diff --git a/guides/theming.md b/guides/theming.md
index 8ff92a283951..63bdbeca638f 100644
--- a/guides/theming.md
+++ b/guides/theming.md
@@ -363,7 +363,7 @@ hue's number identifier with `-contrast`.
 $my-palette: mat.define-palette(mat.$indigo-palette);
 
 .my-custom-style {
- background: mat.get-color-from-palette($my-palette, '500');
+ background: mat.get-color-from-palette($my-palette, 500);
  color: mat.get-color-from-palette($my-palette, '500-contrast');
 }
 ```
@@ -412,7 +412,7 @@ $dark-theme: mat.define-dark-theme((
 .the-dense-zone {
   @include mat.button-density(-1);
 }
-```  
+```
 
 ## Strong focus indicators