diff --git a/pipelined/src/ifu/BTBPredictor.sv b/pipelined/src/ifu/BTBPredictor.sv
index 9e46858e2..ba5fe374a 100644
--- a/pipelined/src/ifu/BTBPredictor.sv
+++ b/pipelined/src/ifu/BTBPredictor.sv
@@ -99,6 +99,7 @@ module BTBPredictor
   // *** need to add forwarding.
 
   // *** optimize for byte write enables
+  // *** switch to ram2p1r1wbefix
   ram2p1r1wb #(Depth, `XLEN+4) memory(.clk(clk),
           .reset(reset),
           .ra1(LookUpPCIndex),