diff --git a/apps/gpsrec/ChangeLog b/apps/gpsrec/ChangeLog
index 412dbe9d3..c71a29482 100644
--- a/apps/gpsrec/ChangeLog
+++ b/apps/gpsrec/ChangeLog
@@ -21,3 +21,4 @@
 0.17: Disable recording if storage is full (fix #574)
 0.18: Period counter now uses GPS time rather than counting packets (allows use with GPS Setup)
 0.19: Fix memory usage issues inside track viewer app
+0.20: Add documentation to explain time needed for getting a time fix