diff --git a/Dockerfile b/Dockerfile
index 26b332a..db709db 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -39,6 +39,7 @@ COPY --from=build /lib/x86_64-linux-gnu/libcrypto.*          /lib/x86_64-linux-g
 # Copy curl utility
 COPY --from=build /usr/bin/curl                              /usr/bin/
 COPY --from=build /usr/lib/x86_64-linux-gnu/libcurl*         /lib/x86_64-linux-gnu/
+COPY --from=build /usr/lib/x86_64-linux-gnu/libidn.so*       /lib/x86_64-linux-gnu/
 
 # Make sure all the links resolve
 RUN ldd tts-service-proxy