--- a/.docker/Dockerfile-try-runtime
+++ b/.docker/Dockerfile-try-runtime
@@ -38,7 +38,7 @@
 ARG WASM_NAME
 ENV NETWORK $NETWORK
 ENV REPLICA_FROM $REPLICA_FROM
-ENV WASM_NAME
+ENV WASM_NAME $WASM_NAME
 
 COPY . /unique_parachain
 WORKDIR /unique_parachain