diff --git a/src/core/ngx_array.h b/src/core/ngx_array.h
index 22cb3fc..d6443d6 100644
--- a/src/core/ngx_array.h
+++ b/src/core/ngx_array.h
@@ -3,8 +3,8 @@
 
 
 #include <ngx_config.h>
+#include <ngx_core.h>
 
-#include <ngx_alloc.h>
 
 typedef struct {
     void       *elts;