diff --git a/gnu/packages/sssd.scm b/gnu/packages/sssd.scm
index 3d8c69e722..5457991952 100644
--- a/gnu/packages/sssd.scm
+++ b/gnu/packages/sssd.scm
@@ -203,7 +203,7 @@ (define-public sssd
              (let ((config.h (open-file "config.h.in" "a")))
                (display (string-append "
 /* Missing in commits on original repo, dunno why but won't work without. */
-#define SMB_HAS_NEW_NDR_PULL_STEAL_SWITCH 1
+#undef SMB_HAS_NEW_NDR_PULL_STEAL_SWITCH
 ")
                         config.h)
                (close config.h))))