diff --git a/bin/cowrie b/bin/cowrie
index 3a13f3ff..abcec7b4 100755
--- a/bin/cowrie
+++ b/bin/cowrie
@@ -162,6 +162,14 @@ fi
 find_cowrie_directory $0
 cd ${COWRIEDIR}
 export PYTHONPATH=${PYTHONPATH}:${COWRIEDIR}/src
+
+# This is for the move to src/ on 2018-07-21
+# It deletes old compiled python code
+# Can be removed at some time in the future
+for dir in ${COWRIEDIR}/twisted ${COWRIEDIR}/cowrie; do
+    [ -d ${dir} ] && find ${dir} -name '*pyc' | xargs rm -f
+done
+
 PIDFILE=var/run/cowrie.pid
 set -e