diff --git a/src/engine.c b/src/engine.c
index d2b861b49d71a61171e19b1b3eb7f6dce4d2a101..dbb30a5d16d8280693eb403aa279b12d508e0448 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -2187,7 +2187,7 @@ void engine_init(struct engine *e, struct space *s, float dt, int nr_threads,
 
   /* Are we doing stuff in parallel? */
   if (nr_nodes > 1) {
-#ifndef HAVE_MPI
+#ifndef WITH_MPI
     error("SWIFT was not compiled with MPI support.");
 #else
     e->policy |= engine_policy_mpi;