diff --git a/site/_docs/frontmatter.md b/site/_docs/frontmatter.md
index 7d27dc07..c9a0292e 100644
--- a/site/_docs/frontmatter.md
+++ b/site/_docs/frontmatter.md
@@ -109,7 +109,7 @@ front matter of a page or post.
           the post will act as though it had been set with these categories
           normally. Categories (plural key) can be specified as a <a
           href="http://en.wikipedia.org/wiki/YAML#Lists">YAML list</a> or a
-          space-separated string.
+          comma-separated string.
 
         </p>
       </td>
@@ -123,7 +123,7 @@ front matter of a page or post.
 
           Similar to categories, one or multiple tags can be added to a post.
           Also like categories, tags can be specified as a YAML list or a
-          space-separated string.
+          comma-separated string.
 
         </p>
       </td>