diff --git a/docs/.gitignore b/docs/.gitignore
index f635075..e76b2db 100644
--- a/docs/.gitignore
+++ b/docs/.gitignore
@@ -1,3 +1,4 @@
 *-stamp
 _build/
 /swh-*
+sources/
diff --git a/docs/Makefile b/docs/Makefile
index 8448383..8ba2548 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -1,70 +1,70 @@
 SPHINXOPTS ?=
 SPHINXBUILD = python3 -c 'import sphinx, sys; sys.exit(sphinx.main(sys.argv))'
 SOURCEDIR = .
 BUILDDIR = _build
 HTMLDIR = $(BUILDDIR)/html
-SWHPKGDIR = `python3 -c 'import swh; print(swh.__path__[0])'`
+SWHPKGDIR = sources/swh/
 
 INSTALL_HOST = pergamon.internal.softwareheritage.org
 INSTALL_DIR = /srv/softwareheritage/docs/webroot/devel
 INSTALL_GROUP = swhdev
 INSTALL_PERMS = g+rwX
 
 SPHINXAPIDOC = sphinx-apidoc
 APIDOC_DIR = apidoc
 APIDOC_OPTS = --ext-viewcode
 APIDOC_EXCLUDES = */tests */tests/* */*/tests/* */*/*/tests/*
 APIDOC_EXCLUDES += */migrations */migrations/* */*/migrations/* */*/*/migrations/*
 APIDOC_EXCLUDES += */wsgi.py */*/wsgi.py */*/*/wsgi.py */*/*/wsgi.py
 APIDOC_SWH_EXCLUDES = $(patsubst %,$(SWHPKGDIR)/%,$(APIDOC_EXCLUDES))
 
 html: sphinx/html
 
 sphinx/html: links-stamp apidoc-stamp images-stamp rec-build-stamp
 
 links-stamp:
 	bin/ln-sphinx-subprojects
 	touch $@
 
 apidoc: apidoc-stamp
-apidoc-stamp: images-stamp
-	$(SPHINXAPIDOC) $(APIDOC_OPTS) -o $(APIDOC_DIR) $(SWHPKGDIR) $(APIDOC_SWH_EXCLUDES)
+apidoc-stamp: links-stamp images-stamp
+	$(SPHINXAPIDOC) --implicit-namespaces $(APIDOC_OPTS) -o $(APIDOC_DIR) $(SWHPKGDIR) $(APIDOC_SWH_EXCLUDES)
 	touch $@
 
 images-stamp:
 	$(MAKE) -C images
 	touch $@
 
 # Build documentation recursively in all packages, to make sure that auxiliary,
 # non-sphinx managed documentation artifacts (e.g., schema diagrams) are also
 # built.
 rec-build-stamp: $(wildcard ../../swh-*/docs/*.rst)
 	$(MAKE) -C ../../ docs-assets
 	touch $@
 
 clean: sphinx/clean
 	bin/ln-sphinx-subprojects --remove
 	$(MAKE) -C images clean
 	rm -f *-stamp
 	rm -f $(APIDOC_DIR)/*
 
 distclean: clean
 	make -C ../../ docs-clean
 
 help: sphinx/help
 
 sphinx/clean:
 	$(SPHINXBUILD) -M clean "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS)
 
 sphinx/%:
 	$(SPHINXBUILD) -b $* "$(SOURCEDIR)" "$(BUILDDIR)/$*" $(SPHINXOPTS)
 
 install: html
 	test -d $(HTMLDIR)
 	rsync -rlvuz --delete $(BUILDDIR)/html/ $(INSTALL_HOST):$(INSTALL_DIR)/
 	ssh $(INSTALL_HOST) \
 		"find $(INSTALL_DIR) -not -group $(INSTALL_GROUP) -exec chgrp -v $(INSTALL_GROUP) {} + ; \
 		 find $(INSTALL_DIR) -not -perm -ug=rw,o=r -exec chmod -v ug+rw,o+r {} + ; \
 		 find $(INSTALL_DIR) -type d -not -perm -g=xs,ou=x -exec chmod -v g+xs,ou+x {} +"
 
 .PHONY: help html clean distclean install
diff --git a/docs/bin/ln-sphinx-subprojects b/docs/bin/ln-sphinx-subprojects
index 91d806f..2ab0c1c 100755
--- a/docs/bin/ln-sphinx-subprojects
+++ b/docs/bin/ln-sphinx-subprojects
@@ -1,30 +1,35 @@
 #!/bin/bash
 set -e
 
 create_links () {
+    mkdir -p sources/swh/
     for pymodule in $(cd ../../ && bin/ls-py-modules) ; do
         if [ "$pymodule" = 'swh-docs' ] ; then
             continue
         fi
         if [ ! -e "$pymodule" -a -d "../../${pymodule}/docs" ] ; then
             ln -s "../../${pymodule}/docs" "$pymodule"
         fi
+        if [ -d "../../${pymodule}/swh" ] ; then
+            cp -fr --link "../../${pymodule}/swh/" "sources/"
+        fi
     done
 }
 
 remove_links () {
     for pymodule in $(cd ../../ && bin/ls-py-modules) ; do
         if [ "$pymodule" = 'swh-docs' ] ; then
             continue
         fi
         if [ -L "$pymodule" ] ; then
             rm "$pymodule"
         fi
     done
+    rm -rf sources
 }
 
 if [ "$1" = "--remove" ] ; then
     remove_links
 else
     create_links
 fi