diff --git a/en/reference/annotations-reference.rst b/en/reference/annotations-reference.rst
index 0383831ef2e..da79f41e599 100644
--- a/en/reference/annotations-reference.rst
+++ b/en/reference/annotations-reference.rst
@@ -157,7 +157,7 @@ Example:
 
 .. _annref_discriminatorcolumn:
 
-@DiscrimnatorColumn
+@DiscriminatorColumn
 ~~~~~~~~~~~~~~~~~~~~~
 
 This annotation is a required annotation for the topmost/super