diff --git a/tests/docker/test-clang b/tests/docker/test-clang
index db9e6970b7..8c51ead518 100755
--- a/tests/docker/test-clang
+++ b/tests/docker/test-clang
@@ -17,7 +17,9 @@ requires clang
 
 cd "$BUILD_DIR"
 
-OPTS="--cxx=clang++ --cc=clang --host-cc=clang --enable-sanitizers"
+OPTS="--cxx=clang++ --cc=clang --host-cc=clang"
+OPTS="$OPTS --extra-cflags=-fsanitize=undefined \
+    --extra-cflags=-fno-sanitize=float-divide-by-zero"
 build_qemu $OPTS
 check_qemu
 install_qemu