diff --git a/auto/modules b/auto/modules
index ccd4d9a..e2c9092 100644
--- a/auto/modules
+++ b/auto/modules
@@ -55,23 +55,27 @@
 HTTP_MODULES="$HTTP_MODULES $HTTP_STATIC_MODULE $HTTP_INDEX_MODULE"
 
 if [ $HTTP_REWRITE = YES -a $USE_PCRE != DISABLED ]; then
+    have=NGX_HTTP_REWRITE . auto/have
     USE_PCRE=YES
     HTTP_MODULES="$HTTP_MODULES $HTTP_REWRITE_MODULE"
     HTTP_SRCS="$HTTP_SRCS $HTTP_REWRITE_SRCS"
 fi
 
 if [ $HTTP_GZIP = YES ]; then
+    have=NGX_HTTP_GZIP . auto/have
     USE_ZLIB=YES
     HTTP_FILTER_MODULES="$HTTP_FILTER_MODULES $HTTP_GZIP_FILTER_MODULE"
     HTTP_SRCS="$HTTP_SRCS $HTTP_GZIP_SRCS"
 fi
 
 if [ $HTTP_SSI = YES ]; then
+    have=NGX_HTTP_SSI . auto/have
     HTTP_FILTER_MODULES="$HTTP_FILTER_MODULES $HTTP_SSI_FILTER_MODULE"
     HTTP_SRCS="$HTTP_SRCS $HTTP_SSI_SRCS"
 fi
 
 if [ $HTTP_PROXY = YES ]; then
+    have=NGX_HTTP_PROXY . auto/have
     USE_MD5=YES
     HTTP_MODULES="$HTTP_MODULES $HTTP_PROXY_MODULE"
     HTTP_INCS="$HTTP_INCS $HTTP_PROXY_INCS"