--- src/debugger.c.orig	2011-11-15 04:03:40.000000000 +0100
+++ src/debugger.c	2015-08-30 15:23:18.000000000 +0200
@@ -1585,7 +1585,7 @@
   saturn.mem_cntl[1].config[0] = ram_base;
   saturn.mem_cntl[1].config[1] = ram_mask;
 
-  return;
+  return NULL;
 }
 
 static void