diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 68f6f66f..0c2cf11e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -33,8 +33,8 @@ your symbol in TeX surrounded by other different kinds of symbols, and seeing
 whether your spacing matches the spacing that TeX produces.
 
 Once your symbol works, check the JavaScript console to make sure you don't get
-a message like "Can't find character metrics for \_" when you render your symbol.
-If you do, check out [extract_ttfs.py](metrics/extract_ttfs.py).
+a message like `No character metrics for '_'` when you render your symbol.
+If you do, check out [dockers/fonts](dockers/fonts) which generates fonts and metrics.
 
 #### Adding new functions