diff --git a/docs/classDiagram.md b/docs/classDiagram.md
index 5bced23a2..177e67d31 100644
--- a/docs/classDiagram.md
+++ b/docs/classDiagram.md
@@ -336,7 +336,6 @@ Multiplicity notations are placed near the ends of an association.
 
 The different cardinality options are :
 
-- `0..1` Zero or one
 - `1` Only 1
 - `0..1` Zero or One
 - `1..*` One or more