diff --git a/src/schema_formats/XML/GMP.xml.in b/src/schema_formats/XML/GMP.xml.in
index 172b845c5..75b85660b 100644
--- a/src/schema_formats/XML/GMP.xml.in
+++ b/src/schema_formats/XML/GMP.xml.in
@@ -11990,7 +11990,7 @@ END:VCALENDAR
in_use
- Whether any tasks are using the filter
+ Whether any alerts are using the filter
boolean