diff --git a/spaceauth/caps.py b/spaceauth/caps.py
index a82eb23..9545b9c 100644
--- a/spaceauth/caps.py
+++ b/spaceauth/caps.py
@@ -7,7 +7,9 @@ import time
 
 
 def cap_check(capability, user=None):
-    if not current_user.is_authenticated:
+    '''Checks if specified user (or current user) has desired capacifier
+    capability'''
+    if not user and not current_user.is_authenticated:
         return False
 
     user = user or current_user.get_id()
@@ -38,7 +40,8 @@ def caps_cleanup(app, user):
 
 
 def cap_required(capability):
-    '''Checks if user has desired capacifier capability'''
+    '''Decorator to check if user has desired capacifier capability, returns
+    403 otherwise'''
 
     def inner(func):
         @functools.wraps(func)