diff --git a/docs/images/.gitignore b/docs/images/.gitignore
--- a/docs/images/.gitignore
+++ b/docs/images/.gitignore
@@ -1,3 +1,4 @@
 py-deps-*
 tasks-git-loader.svg
 tasks-lister.svg
+tasks-metadata-indexers.svg
diff --git a/docs/images/Makefile b/docs/images/Makefile
--- a/docs/images/Makefile
+++ b/docs/images/Makefile
@@ -9,7 +9,12 @@
 UML_DIAGS_SRC = $(wildcard *.uml)
 UML_DIAGS = $(patsubst %.uml,%.svg,$(UML_DIAGS_SRC))
 
-all: $(DEP_GRAPHS) $(UML_DIAGS)
+EXT_IMAGES = $(filter-out $(wildcard ../../../swh-docs/docs/images/*.svg), $(wildcard ../../../swh-*/docs/images/*.svg))
+
+all: $(DEP_GRAPHS) $(UML_DIAGS) copy_images
+
+copy_images: $(EXT_IMAGES)
+	cp $(EXT_IMAGES) .
 
 py-deps-all.dot: $(PY_DEPGRAPH) $(PY_REQUIREMENTS)
 	cd ../../.. ; $(CURDIR)/$(PY_DEPGRAPH) > $(CURDIR)/$@