diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 93d14ebe57..165ccfa400 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -444,7 +444,6 @@ xenial:amd64:build:
   variables:
     CC: gcc
     CFLAGS: "-Wall -Wextra -O2 -g"
-    EXTRA_CONFIGURE: "--with-libidn2"
   <<: *ubuntu_xenial_amd64_image
   <<: *build_job