diff --git a/src/BootstrapBlazor.Server/Dockerfile b/src/BootstrapBlazor.Server/Dockerfile
index 064375ee14c..1fd5253a3fb 100644
--- a/src/BootstrapBlazor.Server/Dockerfile
+++ b/src/BootstrapBlazor.Server/Dockerfile
@@ -14,7 +14,7 @@ FROM build AS publish
 RUN dotnet publish -c Release -o /app
 
 FROM base AS final
-ENV LANG zh_CN.utf8
+ENV LANG=zh_CN.utf8
 WORKDIR /app
 COPY --from=publish /app .
 ENTRYPOINT ["dotnet", "BootstrapBlazor.Server.dll"]