diff --git a/3rdparty/Makefile.inc b/3rdparty/Makefile.inc
index 0ed85af..ea100f4 100644
--- a/3rdparty/Makefile.inc
+++ b/3rdparty/Makefile.inc
@@ -1,2 +1,3 @@
 THIRDPARTY_DIR = $(dir $(lastword $(MAKEFILE_LIST)))
 include $(THIRDPARTY_DIR)/everest/Makefile.inc
+include ../3rdparty/p256-m/Makefile.inc