diff --git a/Dockerfile b/Dockerfile
index c9b5523..7064efc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -32,6 +32,8 @@ COPY . .
 COPY ocrd-tool.json .
 # prepackage ocrd-tool.json as ocrd-all-tool.json
 RUN ocrd ocrd-tool ocrd-tool.json dump-tools > $(dirname $(ocrd bashlib filename))/ocrd-all-tool.json
+# prepackage ocrd-all-module-dir.json
+RUN ocrd ocrd-tool ocrd-tool.json dump-module-dirs > $(dirname $(ocrd bashlib filename))/ocrd-all-module-dir.json
 RUN make install && rm -rf /build/dinglehopper
 
 WORKDIR /data