diff --git a/PKGBUILD b/PKGBUILD
index b75dd8d..48cd4eb 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -66,6 +66,7 @@ ac_add_options --with-app-basename=${_pkgname}
 ac_add_options --with-branding=browser/branding/${pkgname}
 ac_add_options --with-distribution-id=io.gitlab.${pkgname}
 ac_add_options --with-unsigned-addon-scopes=app,system
+ac_add_options --allow-addon-sideload
 export MOZ_REQUIRE_SIGNING=0
 
 # System libraries