diff --git a/ct-ng.in b/ct-ng.in
index 6149d1bb..51b1ff62 100644
--- a/ct-ng.in
+++ b/ct-ng.in
@@ -10,7 +10,7 @@ MAKEFLAGS += --no-print-directory --no-builtin-rules
 .NOTPARALLEL:
 
 # This is where ct-ng is:
-export CT_NG:=$(lastword $(MAKEFILE_LIST))
+export CT_NG:=$(abspath $(lastword $(MAKEFILE_LIST)))
 # and this is where we're working in:
 export CT_TOP_DIR:=$(shell pwd)