diff --git a/docker-gen-proto.sh b/docker-gen-proto.sh
index 89132a5064..3d33d2a174 100755
--- a/docker-gen-proto.sh
+++ b/docker-gen-proto.sh
@@ -7,7 +7,7 @@ set -x # Print commands and their arguments as they are executed
 
 # This script is used to generate protobuf files for all services with Docker.
 
-. .env
+. ./.env
 
 gen_proto_go() {
   echo "Generating Go protobuf files for $1"