diff --git a/kdoctools/customization/obsolete/general.entities b/kdoctools/customization/obsolete/general.entities
index 32b528910..5792a9467 100644
--- a/kdoctools/customization/obsolete/general.entities
+++ b/kdoctools/customization/obsolete/general.entities
@@ -356,6 +356,7 @@
 <!ENTITY SGI	"<trademark>SGI</trademark>">
 <!ENTITY Solaris	"<trademark>Solaris</trademark>">
 <!ENTITY SuSE	'<acronym><trademark class="registered">SuSE</trademark></acronym>'>
+<!ENTITY TQt	"<trademark>TQt</trademark>">
 <!ENTITY ThreeCom	'<trademark class="registered">3Com</trademark>'>
 <!ENTITY ttdemidi	"<application>ttdemidi</application>">
 <!ENTITY TrueType	'<trademark class="registered">TrueType</trademark>'>