diff --git a/docs/Makefile b/docs/Makefile
index bf867de5518beb4ff5cf68f23733e3e04f98f2b0..ae6cc1946535661d9d3175fc38fc084be5daa85d 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -1,2 +1,7 @@
+ifdef SWH_PACKAGE_DOC_TOX_BUILD
 include swh-docs/Makefile.sphinx
+else
+include ../../swh-docs/Makefile.sphinx
+endif
+
 -include Makefile.local