diff --git a/doc/tutorial/basics/ranges.md b/doc/tutorial/basics/ranges.md
index c37ea75..ab796a6 100644
--- a/doc/tutorial/basics/ranges.md
+++ b/doc/tutorial/basics/ranges.md
@@ -35,8 +35,8 @@
 ```
 a:  3.5
 b:  _|_
-c:  3
+c:  3   <!-- jba: this should be 3.0, right? -->
 d:  "ma"
 e:  _|_
 r1: 3..7
-```
\ No newline at end of file
+```