diff --git a/hy/completer.py b/hy/completer.py
index c4de45c..2f41e3f 100644
--- a/hy/completer.py
+++ b/hy/completer.py
@@ -24,10 +24,11 @@ except ImportError:
     except ImportError:
         docomplete = False
 
-if sys.platform == 'darwin' and 'libedit' in readline.__doc__:
-    readline_bind = "bind ^I rl_complete"
-else:
-    readline_bind = "tab: complete"
+if docomplete:
+    if sys.platform == 'darwin' and 'libedit' in readline.__doc__:
+        readline_bind = "bind ^I rl_complete"
+    else:
+        readline_bind = "tab: complete"
 
 
 class Completer(object):