diff --git a/.buildbot/openwrt/build.sh b/.buildbot/openwrt/build.sh
index 8bcf2f8..79bbd2f 100755
--- a/.buildbot/openwrt/build.sh
+++ b/.buildbot/openwrt/build.sh
@@ -24,7 +24,7 @@ make image \
                   asterisk \
                   asterisk-pjsip asterisk-bridge-simple \
 		  asterisk-codec-alaw asterisk-codec-ulaw \
-		  asterisk-res-rtp-asterisk"
+		  asterisk-res-rtp-asterisk kmod-nf-nathelper-extra"
 
 mkdir -p ../out
 mv build_dir/target-aarch64_cortex-a72_musl/linux-bcm27xx_bcm2711/tmp/*.gz ../out