diff --git a/midipix.env b/midipix.env
index e89c172..f49c540 100644
--- a/midipix.env
+++ b/midipix.env
@@ -241,6 +241,7 @@ gl_cv_func_chown_slash_works=yes
 gl_cv_func_exp2l_ieee=yes
 gl_cv_func_expm1_ieee=yes
 gl_cv_func_fclose_stdin=yes
+gl_cv_func_fchmodat_works=yes
 gl_cv_func_fchownat_empty_filename_works=yes
 gl_cv_func_fchownat_nofollow_works=yes
 gl_cv_func_fcntl_f_dupfd_cloexec=yes