diff --git a/atomics-contract/Makefile b/atomics-contract/Makefile
index 1a019fd..2890edb 100644
--- a/atomics-contract/Makefile
+++ b/atomics-contract/Makefile
@@ -1,6 +1,6 @@
 # We cannot use $(shell pwd), which will return unix path format on Windows,
 # making it hard to use.
-cur_dir = $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+cur_dir = $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
 
 TOP := $(cur_dir)
 # RUSTFLAGS that are likely to be tweaked by developers. For example,
diff --git a/contract/Makefile b/contract/Makefile
index 7e88d6e..e1112c6 100644
--- a/contract/Makefile
+++ b/contract/Makefile
@@ -1,6 +1,6 @@
 # We cannot use $(shell pwd), which will return unix path format on Windows,
 # making it hard to use.
-cur_dir = $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+cur_dir = $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
 
 TOP := $(cur_dir)
 # RUSTFLAGS that are likely to be tweaked by developers. For example,
diff --git a/stack-reorder-contract/Makefile b/stack-reorder-contract/Makefile
index af810f9..48c9954 100644
--- a/stack-reorder-contract/Makefile
+++ b/stack-reorder-contract/Makefile
@@ -1,6 +1,6 @@
 # We cannot use $(shell pwd), which will return unix path format on Windows,
 # making it hard to use.
-cur_dir = $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+cur_dir = $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
 
 TOP := $(cur_dir)
 # RUSTFLAGS that are likely to be tweaked by developers. For example,
diff --git a/standalone-contract/Makefile b/standalone-contract/Makefile
index 9ad825d..14d827c 100644
--- a/standalone-contract/Makefile
+++ b/standalone-contract/Makefile
@@ -1,6 +1,6 @@
 # We cannot use $(shell pwd), which will return unix path format on Windows,
 # making it hard to use.
-cur_dir = $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+cur_dir = $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
 
 TOP := $(cur_dir)
 # RUSTFLAGS that are likely to be tweaked by developers. For example,
diff --git a/workspace/Makefile b/workspace/Makefile
index 6cd1398..71fbbc1 100644
--- a/workspace/Makefile
+++ b/workspace/Makefile
@@ -1,6 +1,6 @@
 # We cannot use $(shell pwd), which will return unix path format on Windows,
 # making it hard to use.
-cur_dir = $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+cur_dir = $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
 
 TOP := $(cur_dir)
 # RUSTFLAGS that are likely to be tweaked by developers. For example,