diff --git a/network/nginx/nginx.conf b/network/nginx/nginx.conf
index 48828b581..87b164ab1 100644
--- a/network/nginx/nginx.conf
+++ b/network/nginx/nginx.conf
@@ -86,6 +86,19 @@ var_append CC_WRAPPER_REMOVE " " "-Werror"
 # 3rd party addon modules
 #
 
+# generic function to patch 3rd party addon modules
+# patches have to be named $modulename*.diff where
+# $modulename is the name used as parameter while
+# calling pkg_nginx_add_module()
+#
+pkg_nginx_patch_module() {
+	pushd ../addon-module/$1
+	for p in $( ls -1 $confdir/$1*.diff 2>/dev/null ); do
+		patch -p1 < "$p"
+	done
+	popd
+}
+
 # generic function to add a 3rd party addon module
 # function parameters:
 #   $1: pattern of the modules source file name
@@ -94,6 +107,7 @@ pkg_nginx_add_module() {
 	mkdir -p $builddir/addon-module/$1
         tar -v $taropt $( match_source_file -p $1 nginx ) --strip-components=1 -C $builddir/addon-module/$1
 	var_append confopt ' ' "--add-module=../addon-module/$1"
+	hook_add postpatch 5 "pkg_nginx_patch_module $1"
 }
 
 # rrd graph module