diff --git a/cache.go b/cache.go
index 97f31c2..d0bd9d3 100644
--- a/cache.go
+++ b/cache.go
@@ -4,4 +4,5 @@ type Cache interface {
 	Get(key string) (interface{}, error)
 	Set(key string, data interface{}) error
 	Remove(key string) error
+	Flush()
 }
diff --git a/errors.go b/errors.go
index c29bb5e..5845949 100644
--- a/errors.go
+++ b/errors.go
@@ -3,5 +3,5 @@ package gocache
 import "errors"
 
 var (
-	ErrKeyNotFound = errors.New("Key not found")
+	ErrKeyNotFound = errors.New("key not found")
 )