diff --git a/alpine/APKBUILD.in b/alpine/APKBUILD.in
index 2cb3feec157f..855b5859039c 100644
--- a/alpine/APKBUILD.in
+++ b/alpine/APKBUILD.in
@@ -33,6 +33,8 @@ _libdir=/usr/lib
 _user=frr
 
 build() {
+	export ABUILD_APK_INDEX_OPTS="--allow-untrusted"
+
 	cd "$builddir"
 
 	./configure \