diff --git a/auto/unix b/auto/unix
index 017f7bf..55b66bf 100755
--- a/auto/unix
+++ b/auto/unix
@@ -25,8 +25,8 @@
 ngx_type="uint64_t"
 ngx_types="u_int64_t"; . auto/types/typedef
 
-#ngx_type="sig_atomic_t"
-#ngx_types="int"; . auto/types/typedef
+ngx_type="sig_atomic_t"
+ngx_types="int"; . auto/types/typedef
 
 ngx_type="socklen_t"
 ngx_types="uint32_t"; . auto/types/typedef