diff --git a/taiga/base/throttling.py b/taiga/base/throttling.py
index 086f9660..e8f60c2f 100644
--- a/taiga/base/throttling.py
+++ b/taiga/base/throttling.py
@@ -39,6 +39,8 @@ class GlobalThrottlingMixin:
         }
 
 
+# If you derive a class from this mixin you have to put this class previously
+# to the base throttling class.
 class ThrottleByActionMixin:
     throttled_actions = []
 
diff --git a/taiga/users/throttling.py b/taiga/users/throttling.py
index 718283a0..b87ea8da 100644
--- a/taiga/users/throttling.py
+++ b/taiga/users/throttling.py
@@ -24,6 +24,6 @@ class UserDetailRateThrottle(throttling.GlobalThrottlingMixin, throttling.Thrott
     throttled_actions = ["by_username", "retrieve"]
 
 
-class UserUpdateRateThrottle(throttling.UserRateThrottle, throttling.ThrottleByActionMixin):
+class UserUpdateRateThrottle(throttling.ThrottleByActionMixin, throttling.UserRateThrottle):
     scope = "user-update"
     throttled_actions = ["update", "partial_update"]