diff --git a/src/scheduler.h b/src/scheduler.h
index 04986b73d08849e02fbab2203961beb2167d1ba4..a71683db102a65e7c053677a3f3789c979626198 100644
--- a/src/scheduler.h
+++ b/src/scheduler.h
@@ -24,7 +24,9 @@
 #define scheduler_dosub                      1
 #define scheduler_maxsteal                   10
 #define scheduler_maxtries                   2
-#define scheduler_doforcesplit               1
+#define scheduler_doforcesplit               0 /* Beware: switching this on can/will
+                                                  break engine_addlink as it assumes
+                                                  a maximum number of tasks per cell. */
 
 /* Flags . */
 #define scheduler_flag_none                  0