diff --git a/Dockerfile b/Dockerfile
index 6a77a04..2a4ecf5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,8 @@ ENV GITIT_VERSION 0.12.1.1+dfsg-6+b3
 
 RUN apt-get update \
     && apt-cache policy gitit \
-    && apt-get install -y --no-install-recommends mime-support gitit=$GITIT_VERSION \
+    && apt-get install -y --no-install-recommends \
+         libghc-filestore-data mime-support gitit=$GITIT_VERSION \
     && rm -rf /var/lib/apt/lists/*
 
 VOLUME ["/data"]