diff --git a/fluxer_server/Dockerfile b/fluxer_server/Dockerfile
index ee296fd3..4854a74f 100644
--- a/fluxer_server/Dockerfile
+++ b/fluxer_server/Dockerfile
@@ -123,6 +123,9 @@ COPY fluxer_app/ ./fluxer_app/
 # Set FLUXER_CONFIG for rspack to derive API endpoints
 ENV FLUXER_CONFIG=/usr/src/app/config/config.production.template.json
 
+# Generate locale message files before build (needed for TypeScript compilation)
+RUN cd fluxer_app && pnpm lingui:compile
+
 RUN cd fluxer_app && pnpm build
 
 FROM node:24-trixie-slim AS production