diff --git a/src/_font-weight.css b/src/_font-weight.css
index e60884d..e67dadd 100644
--- a/src/_font-weight.css
+++ b/src/_font-weight.css
@@ -18,7 +18,7 @@
      9 = literal value 900
 
    Media Query Extensions:
-     -ns = small
+     -s = small
      -m  = medium
      -l  = large