diff --git a/PPP3/Makefile b/PPP3/Makefile
index a74bcc3..f7542fc 100644
--- a/PPP3/Makefile
+++ b/PPP3/Makefile
@@ -1,8 +1,10 @@
+ROOT_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
+
 all:
-	meson compile -C . 2>&1 | ../builddir/goc
+	meson compile -C . 2>&1 | ${ROOT_DIR}/builddir/goc
 
 build:
 	meson compile -C .
 
 test:
-	@echo "../ex08.cpp:7:10: error: use of undeclared identifier \'oops\'" | ../builddir/goc
+	@echo "../ex08.cpp:7:10: error: use of undeclared identifier \'oops\'" | ${ROOT_DIR}/builddir/goc