diff --git a/options.go b/options.go
index 07319b0..bbdd36d 100644
--- a/options.go
+++ b/options.go
@@ -22,3 +22,10 @@ func WithRedsyncOptions(options ...redsync.Option) LockerOption {
 		locker.options = options
 	}
 }
+
+// WithKeyPrefix is a LockerOption for adding a prefix to the lock key
+func WithKeyPrefix(prefix string) LockerOption {
+	return func(locker *redisLocker) {
+		locker.keyPrefix = prefix
+	}
+}
diff --git a/redislock.go b/redislock.go
index 0350670..fcea5f2 100644
--- a/redislock.go
+++ b/redislock.go
@@ -75,10 +75,11 @@ type redisLocker struct {
 	rs                 *redsync.Redsync
 	options            []redsync.Option
 	autoExtendDuration time.Duration
+	keyPrefix          string
 }
 
 func (r *redisLocker) Lock(ctx context.Context, key string) (gocron.Lock, error) {
-	mu := r.rs.NewMutex(key, r.options...)
+	mu := r.rs.NewMutex(r.keyPrefix+key, r.options...)
 	err := mu.LockContext(ctx)
 	if err != nil {
 		return nil, ErrFailedToObtainLock