diff --git a/docker/Dockerfile b/docker/Dockerfile
index 69b4e751..2364876f 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -44,6 +44,7 @@ RUN mkdir -p /config && \
     # Install ytdl-sub, ensure it is installed properly
     pip install --no-cache-dir ytdl_sub-*.whl && \
       ytdl-sub -h && \
+      ldconfig && \
     # Delete unneeded packages after install
     rm ytdl_sub-*.whl && \
     apt-get remove -y \