diff --git a/mongoengine/__init__.py b/mongoengine/__init__.py
index 0ace8f00..af4c4171 100644
--- a/mongoengine/__init__.py
+++ b/mongoengine/__init__.py
@@ -18,6 +18,6 @@ VERSION = (0, 6, 20)
 def get_version():
     if isinstance(VERSION[-1], basestring):
         return '.'.join(map(str, VERSION[:-1])) + VERSION[-1]
-    return '.'.join(map(str, VERSIONs))
+    return '.'.join(map(str, VERSION))
 
 __version__ = get_version()
diff --git a/setup.py b/setup.py
index dcdccae3..c9d6b79b 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@ except:
 
 
 def get_version(version_tuple):
-    if isinstance(version_tuple[-1], basestring):
+    if not isinstance(version_tuple[-1], int):
         return '.'.join(map(str, version_tuple[:-1])) + version_tuple[-1]
     return '.'.join(map(str, version_tuple))