diff --git a/Packages/Min_annulus_d/Makefile.settings b/Packages/Min_annulus_d/Makefile.settings
index 3f795a3502c..20138b4fc15 100644
--- a/Packages/Min_annulus_d/Makefile.settings
+++ b/Packages/Min_annulus_d/Makefile.settings
@@ -2,5 +2,7 @@ MAKE_WEB_DIR := web
 MAKE_DOC_DIR := doc_ps
 MAKE_INC_DIR := include/CGAL
 
+MAKE_INC_PATH := ../Optimisation_basic/include:../_QP_solver/include:${MAKE_INC_PATH}
+
 MAKE_FIL_MOD := u=rw,g=r,o=
 MAKE_DIR_MOD := u=rwx,g=rx+s,o=