diff --git a/Help/command/add_definitions.rst b/Help/command/add_definitions.rst
index a9a6bf5d6..2965c3774 100644
--- a/Help/command/add_definitions.rst
+++ b/Help/command/add_definitions.rst
@@ -21,7 +21,5 @@ backwards compatibility.  See documentation of the
 properties for details on adding preprocessor definitions to specific
 scopes and configurations.
 
-Arguments to ``add_definitions`` may use "generator expressions" with
-the syntax "$<...>".  See the :manual:`cmake-generator-expressions(7)`
-manual for available expressions.  See the :manual:`cmake-buildsystem(7)`
-manual for more on defining buildsystem properties.
+See the :manual:`cmake-buildsystem(7)` manual for more on defining
+buildsystem properties.