diff --git a/helpers/list_termine.sh b/helpers/list_termine.sh
index 6e5e4f0..58243ec 100755
--- a/helpers/list_termine.sh
+++ b/helpers/list_termine.sh
@@ -1,4 +1,6 @@
 #!/bin/sh -e
 
+khal --version > /dev/null
+
 khal list --day-format "" --format "* {start} {title}" -a calendars_fsmi today 30d | grep -v Fachschaftsrat | grep -v Feriensprechstunde || true
 
diff --git a/helpers/list_termine_proto.sh b/helpers/list_termine_proto.sh
index a434829..f68fff9 100755
--- a/helpers/list_termine_proto.sh
+++ b/helpers/list_termine_proto.sh
@@ -1,4 +1,5 @@
 #!/bin/sh -e
+khal --version > /dev/null
 echo "{{'{|'}}"
 khal list --day-format "" --format "{{{{'{{{{'}}}}Termin|was={title}|wann={start}{{{{'}}}}'}}}}" -a calendars_fsmi today 30d | grep -v Fachschaftsrat | grep -v Feriensprechstunde || true
 echo "{{'|}'}}"