--- a/.docker/Dockerfile-try-runtime
+++ b/.docker/Dockerfile-try-runtime
@@ -38,6 +38,7 @@
 ARG WASM_NAME
 ENV NETWORK $NETWORK
 ENV REPLICA_FROM $REPLICA_FROM
+ENV WASM_NAME
 
 COPY . /unique_parachain
 WORKDIR /unique_parachain
--- a/.docker/docker-compose.tmp-try-runtime.j2
+++ b/.docker/docker-compose.tmp-try-runtime.j2
@@ -9,7 +9,7 @@
         - "RUST_TOOLCHAIN={{ RUST_TOOLCHAIN }}"
         - "NETWORK={{ NETWORK }}"
         - "REPLICA_FROM={{ REPLICA_FROM }}"
-        - "WASM_NAME={{ WASM_NAME }} "      
+        - "WASM_NAME={{ WASM_NAME }}"      
     image: try-runtime
     container_name: try-runtime
     expose: