diff --git a/scripts/send-reminder-tweets.sh b/scripts/send-reminder-tweets.sh
index 5f002c30..b42a520e 100755
--- a/scripts/send-reminder-tweets.sh
+++ b/scripts/send-reminder-tweets.sh
@@ -1,18 +1,23 @@
 #!/bin/bash
 
 WEBSITE_DIR=${WEBSITE_DIR:-output}
+if [[ -f "/usr/local/bundle/bin/t" ]] ; then
+  T=/usr/local/bundle/bin/t
+else
+  T="bundle exec t"
+fi
 TOOT=${TOOT:-/usr/local/bin/toot}
 
 cd `dirname $0`/..
 
 cat "$WEBSITE_DIR/cccs.ical" | scripts/tweet-reminders.rb 0 "Heute:" | while read LINE ; do
-	bundle exec t update "$LINE"
+	$T update "$LINE"
 done
 cat "$WEBSITE_DIR/cccs.ical" | scripts/tweet-reminders.rb 1 "Morgen:" | while read LINE ; do
-	bundle exec t update "$LINE"
+	$T update "$LINE"
 done
 cat "$WEBSITE_DIR/cccs.ical" | scripts/tweet-reminders.rb 7 "In einer Woche:" | while read LINE ; do
-	bundle exec t update "$LINE"
+	$T update "$LINE"
 done
 
 cat "$WEBSITE_DIR/cccs.ical" | scripts/tweet-reminders.rb 0 "Heute:" 500 | while read LINE ; do