diff --git a/consensus/consensus_fbft.go b/consensus/consensus_fbft.go
index 313abf061..29c9714d3 100644
--- a/consensus/consensus_fbft.go
+++ b/consensus/consensus_fbft.go
@@ -1,9 +1,6 @@
 package consensus
 
-import "sync"
-
 type LockedFBFTPhase struct {
-	mu    sync.Mutex
 	phase FBFTPhase
 }
 
@@ -14,14 +11,10 @@ func NewLockedFBFTPhase(initialPhrase FBFTPhase) *LockedFBFTPhase {
 }
 
 func (a *LockedFBFTPhase) Set(phrase FBFTPhase) {
-	a.mu.Lock()
 	a.phase = phrase
-	a.mu.Unlock()
 }
 
 func (a *LockedFBFTPhase) Get() FBFTPhase {
-	a.mu.Lock()
-	defer a.mu.Unlock()
 	return a.phase
 }