diff --git a/src/core/ngx_rbtree.c b/src/core/ngx_rbtree.c
index 6ae4d5c05..914ca7e88 100644
--- a/src/core/ngx_rbtree.c
+++ b/src/core/ngx_rbtree.c
@@ -136,8 +136,7 @@ ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *temp, ngx_rbtree_node_t *node,
 
         /*  node->key < temp->key */
 
-        p = ((ngx_rbtree_key_int_t) node->key - (ngx_rbtree_key_int_t) temp->key
-              < 0)
+        p = ((ngx_rbtree_key_int_t) (node->key - temp->key) < 0)
             ? &temp->left : &temp->right;
 
         if (*p == sentinel) {
diff --git a/src/event/ngx_event_timer.c b/src/event/ngx_event_timer.c
index 7a8107209..177ac1cf1 100644
--- a/src/event/ngx_event_timer.c
+++ b/src/event/ngx_event_timer.c
@@ -67,7 +67,7 @@ ngx_event_find_timer(void)
 
     ngx_mutex_unlock(ngx_event_timer_mutex);
 
-    timer = (ngx_msec_int_t) node->key - (ngx_msec_int_t) ngx_current_msec;
+    timer = (ngx_msec_int_t) (node->key - ngx_current_msec);
 
     return (ngx_msec_t) (timer > 0 ? timer : 0);
 }
@@ -95,8 +95,7 @@ ngx_event_expire_timers(void)
 
         /* node->key <= ngx_current_time */
 
-        if ((ngx_msec_int_t) node->key - (ngx_msec_int_t) ngx_current_msec <= 0)
-        {
+        if ((ngx_msec_int_t) (node->key - ngx_current_msec) <= 0) {
             ev = (ngx_event_t *) ((char *) node - offsetof(ngx_event_t, timer));
 
 #if (NGX_THREADS)