diff --git a/book/duckumentation/20_markduck/66_special_envs.md b/book/duckumentation/20_markduck/66_special_envs.md
index 926a34c..6a2d60b 100644
--- a/book/duckumentation/20_markduck/66_special_envs.md
+++ b/book/duckumentation/20_markduck/66_special_envs.md
@@ -5,7 +5,7 @@
 The system supports parsing of some special paragraphs.
 
 <!--
-Note: some of these might be redundant and will be eliminated. For now,
+Note some of these might be redundant and will be eliminated. For now,
 I am documenting what is implemented.
 -->