diff --git a/tools/generate-docs-nm-property-infos.py b/tools/generate-docs-nm-property-infos.py
index 90c51b846f..7286da8f20 100755
--- a/tools/generate-docs-nm-property-infos.py
+++ b/tools/generate-docs-nm-property-infos.py
@@ -112,7 +112,6 @@ def escape_xml_char(text):
     text = text.replace("<", "&lt;")
     text = text.replace(">", "&gt;")
     text = text.replace('"', "&quot;")
-    text = text.replace("'", "&apos;")
 
     return text