diff --git a/docker/launch_backend_service.sh b/docker/launch_backend_service.sh
index 3a28ea6e1..a8e850473 100644
--- a/docker/launch_backend_service.sh
+++ b/docker/launch_backend_service.sh
@@ -5,6 +5,7 @@ set -e
 
 # Unset HTTP proxies that might be set by Docker daemon
 export http_proxy=""; export https_proxy=""; export no_proxy=""; export HTTP_PROXY=""; export HTTPS_PROXY=""; export NO_PROXY=""
+export PYTHONPATH=$(pwd)
 
 export LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/
 
@@ -100,4 +101,4 @@ run_server &
 PIDS+=($!)
 
 # Wait for all background processes to finish
-wait
\ No newline at end of file
+wait