diff --git a/iguana/iguana777.h b/iguana/iguana777.h
index 85abcd055..39dc56626 100755
--- a/iguana/iguana777.h
+++ b/iguana/iguana777.h
@@ -35,7 +35,7 @@ typedef int32_t (*blockhashfunc)(uint8_t *blockhashp,uint8_t *serialized,int32_t
 #define IGUANA_HEIGHT 200
 
 #define IGUANA_HEADPERCENTAGE 0.
-#define IGUANA_TAILPERCENTAGE 1.0
+#define IGUANA_TAILPERCENTAGE .85
 #define IGUANA_MAXPENDHDRS 1
 #define _IGUANA_MAXPENDING 77
 #define _IGUANA_MAXBUNDLES 8