diff --git a/en/logbook/card10-camp.md b/en/logbook/card10-camp.md
index c048b86b8eb286291e619ef7435199accacfa39f..21ee8eb9b70fc4e4c726dce5ebdc0fc91b041132 100644
--- a/en/logbook/card10-camp.md
+++ b/en/logbook/card10-camp.md
@@ -20,4 +20,4 @@ There will have been been a device at camp this year that we will have been wear
 
 #### demands
 * find out how this device is built
-
+* develope a time format "camp time" with ongoing hours during the camp