diff --git a/distribute_setup.py b/distribute_setup.py
index bbb6f3c..f5ed1bf 100644
--- a/distribute_setup.py
+++ b/distribute_setup.py
@@ -256,7 +256,7 @@ def _rename_path(path):
 
 def _remove_flat_installation(placeholder):
     if not os.path.isdir(placeholder):
-        log.warn('Unkown installation at %s', placeholder)
+        log.warn('Unknown installation at %s', placeholder)
         return False
     found = False
     for file in os.listdir(placeholder):