diff --git a/src/core/ngx_module.h b/src/core/ngx_module.h
index c94474693..3ac1e437e 100644
--- a/src/core/ngx_module.h
+++ b/src/core/ngx_module.h
@@ -170,11 +170,7 @@
 #define NGX_MODULE_SIGNATURE_26  "0"
 #endif
 
-#if (NGX_HTTP_DEGRADATION)
 #define NGX_MODULE_SIGNATURE_27  "1"
-#else
-#define NGX_MODULE_SIGNATURE_27  "0"
-#endif
 
 #if (NGX_HTTP_X_FORWARDED_FOR)
 #define NGX_MODULE_SIGNATURE_28  "1"
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index 773c21502..fb391d744 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -327,9 +327,7 @@ struct ngx_http_core_loc_conf_s {
     unsigned      auto_redirect:1;
 #if (NGX_HTTP_GZIP)
     unsigned      gzip_disable_msie6:2;
-#if (NGX_HTTP_DEGRADATION)
     unsigned      gzip_disable_degradation:2;
-#endif
 #endif
 
     ngx_http_location_tree_node_t   *static_locations;