fix English grammar
diff --git a/src/event/ngx_event_busy_lock.h b/src/event/ngx_event_busy_lock.h
index 5b50be6..3e76770 100644
--- a/src/event/ngx_event_busy_lock.h
+++ b/src/event/ngx_event_busy_lock.h
@@ -34,7 +34,7 @@
typedef struct {
u_char *md5_mask;
char *md5;
- ngx_uint_t cachable;
+ ngx_uint_t cacheable;
ngx_uint_t busy;
ngx_uint_t max_busy;
@@ -53,7 +53,7 @@
ngx_int_t ngx_event_busy_lock(ngx_event_busy_lock_t *bl,
ngx_event_busy_lock_ctx_t *ctx);
-ngx_int_t ngx_event_busy_lock_cachable(ngx_event_busy_lock_t *bl,
+ngx_int_t ngx_event_busy_lock_cacheable(ngx_event_busy_lock_t *bl,
ngx_event_busy_lock_ctx_t *ctx);
void ngx_event_busy_unlock(ngx_event_busy_lock_t *bl,
ngx_event_busy_lock_ctx_t *ctx);