diff --git a/main/fprobe-ulog/APKBUILD b/main/fprobe-ulog/APKBUILD
index d7ffc3e4d29e7a20931fd7d02a3a52593d1aeea9..059aa47c288d3e7065b03fb5379126524f3fd4b5 100644
--- a/main/fprobe-ulog/APKBUILD
+++ b/main/fprobe-ulog/APKBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Leonardo Arena <rnalrd@alpinelinux.org>
 pkgname=fprobe-ulog
 pkgver=1.2
-pkgrel=3
+pkgrel=4
 pkgdesc="netfilter-based tool that collect network traffic"
 url="https://github.com/opoplawski/fprobe-ulog"
 arch="all"
@@ -32,6 +32,7 @@ prepare() {
 
 build() {
 	cd "$_builddir"
+	CFLAGS="$CFLAGS -std=gnu89" \
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \