diff --git a/setup/git_post_checkout_hook.py b/setup/git_post_checkout_hook.py
index 74de3ad82a..7d46791208 100755
--- a/setup/git_post_checkout_hook.py
+++ b/setup/git_post_checkout_hook.py
@@ -19,7 +19,7 @@ os.chdir(base)
 if flags == '1':  # A branch checkout
     prev_branch, cur_branch = list(map(get_branch_name, (prev_rev, current_rev)))
 
-    subprocess.check_call(['python2', 'setup.py', 'gui', '--summary'])
+    subprocess.check_call(['./setup.py', 'gui', '--summary'])
 
     # Remove .pyc files as some of them might have been orphaned
     for dirpath, dirnames, filenames in os.walk('.'):
diff --git a/setup/git_post_rewrite_hook.py b/setup/git_post_rewrite_hook.py
index bd059b11bf..48170a279d 100755
--- a/setup/git_post_rewrite_hook.py
+++ b/setup/git_post_rewrite_hook.py
@@ -12,4 +12,4 @@ os.chdir(base)
 action = [x.decode('utf-8') if isinstance(x, bytes) else x for x in sys.argv[1:]][0]
 
 if action == 'rebase':
-    subprocess.check_call([sys.executable, 'setup.py', 'gui'])
+    subprocess.check_call(['./setup.py', 'gui'])