diff --git a/makefiles/targets.mk b/makefiles/targets.mk
index e82045b..a9b8e3d 100644
--- a/makefiles/targets.mk
+++ b/makefiles/targets.mk
@@ -59,7 +59,7 @@ warn-jobs:
 
 nimbus-build-system-paths:
 	echo "Creating nimbus-build-system.paths"; \
-	"$(CURDIR)/$(BUILD_SYSTEM_DIR)/scripts/create_nbs_paths.sh"
+	TOP_LEVEL_DIR="$(CURDIR)" "$(CURDIR)/$(BUILD_SYSTEM_DIR)/scripts/create_nbs_paths.sh"
 
 deps-common: | sanity-checks warn-update warn-jobs $(NIMBLE_DIR)
 # - don't build our Nim target if it's not going to be used
diff --git a/scripts/create_nbs_paths.sh b/scripts/create_nbs_paths.sh
index f463ad4..7c42c70 100755
--- a/scripts/create_nbs_paths.sh
+++ b/scripts/create_nbs_paths.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-cd "${ABS_PATH}/../../.."
+cd "$TOP_LEVEL_DIR"
 
 echo "--noNimblePath" > nimbus-build-system.paths
 for file in $(ls -d $PWD/vendor/*)