diff --git a/lib/ft8/ft8b_2.f90 b/lib/ft8/ft8b_2.f90
index 5788dd67d..4a8df4146 100644
--- a/lib/ft8/ft8b_2.f90
+++ b/lib/ft8/ft8b_2.f90
@@ -44,7 +44,7 @@ subroutine ft8b_2(dd0,newdat,nQSOProgress,nfqso,nftx,ndepth,lapon,lapcqonly,   &
   data mde/1,1,1,1,1,1,1,1,0,1,1,0,0,1,0,0,0,0,0,1,1,1,0,1,0,0,0,1/
   data mrr73/0,0,0,0,0,0,1,0,0,0,0,1,0,1,0,1/
   data first/.true./
-  data graymap/0,1,3,2,7,6,4,5/
+  data graymap/0,1,3,2,5,6,4,7/
   save nappasses,naptypes,one
 
   if(first) then
diff --git a/lib/ft8/genft8_174_91.f90 b/lib/ft8/genft8_174_91.f90
index 67918e821..5e1ae0d02 100644
--- a/lib/ft8/genft8_174_91.f90
+++ b/lib/ft8/genft8_174_91.f90
@@ -13,7 +13,7 @@ subroutine genft8_174_91(msg,mygrid,bcontest,i3,n3,msgsent,msgbits,itone)
   integer icos7(0:6)
   integer graymap(0:7)
   data icos7/3,1,4,0,6,5,2/                   !Costas 7x7 tone pattern
-  data graymap/0,1,3,2,7,6,4,5/
+  data graymap/0,1,3,2,5,6,4,7/
 
   call pack77(msg,i3,n3,c77)
   call unpack77(c77,msgsent)