diff --git a/scapy/__init__.py b/scapy/__init__.py
index 5db3f574a..4f3857808 100644
--- a/scapy/__init__.py
+++ b/scapy/__init__.py
@@ -38,7 +38,7 @@ def _version_from_git_describe():
         >>> _version_from_git_describe()
         '2.3.2.dev346'
     """
-    if not os.path.isdir(os.path.join(_SCAPY_PKG_DIR, '../.git')):
+    if not os.path.isdir(os.path.join(os.path.dirname(_SCAPY_PKG_DIR), '.git')):
         raise ValueError('not in scapy git repo')
 
     p = subprocess.Popen(['git', 'describe', '--always'], cwd=_SCAPY_PKG_DIR,