diff --git a/.gitlab-ci.d/buildtest.yml b/.gitlab-ci.d/buildtest.yml
index 91c57efded..0eec570310 100644
--- a/.gitlab-ci.d/buildtest.yml
+++ b/.gitlab-ci.d/buildtest.yml
@@ -432,6 +432,7 @@ clang-system:
     IMAGE: fedora
     CONFIGURE_ARGS: --cc=clang --cxx=clang++
       --extra-cflags=-fsanitize=undefined --extra-cflags=-fno-sanitize-recover=undefined
+      --extra-cflags=-fno-sanitize=function
     TARGETS: alpha-softmmu arm-softmmu m68k-softmmu mips64-softmmu s390x-softmmu
     MAKE_CHECK_ARGS: check-qtest check-tcg