diff --git a/config b/config
index 47bc6c6..11fd2ba 100644
--- a/config
+++ b/config
@@ -1,12 +1,25 @@
 ngx_addon_name=ngx_http_execute_module
 
+EXECUTE_SRCS="                                                           \
+             $ngx_addon_dir/ngx_http_execute_module.c                    \
+             $ngx_addon_dir/ngx_process.c                                \
+             $ngx_addon_dir/ngx_result.c                                 \
+             "
+
+EXECUTE_DEPS="                                                           \
+             $ngx_addon_dir/ngx_str.h                                    \
+             $ngx_addon_dir/ngx_result.h                                 \
+             "
+
 if test -n "$ngx_module_link"; then
     ngx_module_type=HTTP
     ngx_module_name=ngx_http_execute_module
-    ngx_module_srcs="$ngx_addon_dir/ngx_http_execute_module.c  $ngx_addon_dir/ngx_process.c $ngx_addon_dir/ngx_result.c"
+    ngx_module_deps="$EXECUTE_DEPS"
+    ngx_module_srcs="$EXECUTE_SRCS"
 
     . auto/module
 else
     HTTP_MODULES="$HTTP_MODULES ngx_http_execute_module"
-    NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_http_execute_module.c  $ngx_addon_dir/ngx_process.c $ngx_addon_dir/ngx_result.c"
-fi
\ No newline at end of file
+    NGX_ADDON_SRCS="$NGX_ADDON_SRCS $EXECUTE_SRCS"
+    NGX_ADDON_DEPS="$NGX_ADDON_DEPS $EXECUTE_DEPS"
+fi