diff --git a/auto/headers b/auto/headers
index 29eec60..d41d95a 100644
--- a/auto/headers
+++ b/auto/headers
@@ -6,3 +6,5 @@
 ngx_include="inttypes.h";  . auto/include
 ngx_include="limits.h";    . auto/include
 ngx_include="sys/filio.h"; . auto/include
+ngx_include="crypt.h";     . auto/include
+ngx_include="malloc.h";    . auto/include