diff --git a/README_DEVELOPERS b/README_DEVELOPERS
index a3e835e..2797565 100644
--- a/README_DEVELOPERS
+++ b/README_DEVELOPERS
@@ -96,6 +96,9 @@
 so Memcheck is not as useful as it could be.  It also has not been tested
 much, so don't be surprised if you hit problems.
 
+When using self-hosting with an outer callgrind tool, use '--pop-on-jump'
+(on the outer). Otherwise, callgrind has much higher memory requirements. 
+
 
 Printing out problematic blocks
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~