diff --git a/var/spack/repos/builtin/packages/xcfun/package.py b/var/spack/repos/builtin/packages/xcfun/package.py
index 2656f3204cc..2e07c728195 100644
--- a/var/spack/repos/builtin/packages/xcfun/package.py
+++ b/var/spack/repos/builtin/packages/xcfun/package.py
@@ -39,5 +39,6 @@ def cmake_args(self):
             "-DXCFUN_MAX_ORDER=8",
             "-DXCFUN_PYTHON_INTERFACE=ON",
             "-DPYTHON_EXECUTABLE={0}".format(spec['python'].command),
+            "-DENABLE_TESTALL=OFF",
         ]
         return args