diff --git a/iguana/iguana777.h b/iguana/iguana777.h
index 76a11c5bb..7067ec929 100755
--- a/iguana/iguana777.h
+++ b/iguana/iguana777.h
@@ -32,8 +32,8 @@ typedef int32_t (*blockhashfunc)(uint8_t *blockhashp,uint8_t *serialized,int32_t
 #define IGUANA_WIDTH 1024
 #define IGUANA_HEIGHT 200
 
-#define IGUANA_HEADPERCENTAGE 1.0
-#define IGUANA_TAILPERCENTAGE 1.0
+#define IGUANA_HEADPERCENTAGE .0777
+#define IGUANA_TAILPERCENTAGE .777
 #define IGUANA_MAXPENDHDRS 1
 #define _IGUANA_MAXPENDING 8    //64
 #define _IGUANA_MAXBUNDLES 8