diff --git a/includes/iguana_defines.h b/includes/iguana_defines.h
index a83cc7877..60cf3b8d3 100755
--- a/includes/iguana_defines.h
+++ b/includes/iguana_defines.h
@@ -45,7 +45,7 @@
 #define IGUANA_TAILPERCENTAGE 1.0
 #define IGUANA_MAXPENDHDRS 1
 #define IGUANA_MAXPENDINGREQUESTS 16
-#define IGUANA_PENDINGREQUESTS 16
+#define IGUANA_PENDINGREQUESTS 512
 #define IGUANA_MINPENDBUNDLES 4
 #define IGUANA_MAXPENDBUNDLES 64
 #define IGUANA_RPCPORT 7778