diff --git a/stability/circuit-breaker.md b/stability/circuit-breaker.md
index 30f59cf..06eba0b 100644
--- a/stability/circuit-breaker.md
+++ b/stability/circuit-breaker.md
@@ -41,6 +41,12 @@ type Counter interface {
     LastActivity() time.Time
     Reset()
 }
+
+type counters struct {
+   ConsecutiveFailures  uint32
+   ConsecutiveSuccesses uint32
+}
+
 ```
 
 ### Circuit Breaker
@@ -60,21 +66,6 @@ import (
     "time"
 )
 
-type State int
-
-const (
-	UnknownState State = iota
-	FailureState
-	SuccessState
-)
-
-type Counter interface {
-	Count(State)
-	ConsecutiveFailures() uint32
-	LastActivity() time.Time
-	Reset()
-}
-
 type Circuit func(context.Context) error
 
 var canRetry = func(cnt counters, failureThreshold uint32) bool {