diff --git a/uGMT_algos/firmware/hdl/common/ugmt_constants.vhd b/uGMT_algos/firmware/hdl/common/ugmt_constants.vhd
index 5e7952a..5d75706 100644
--- a/uGMT_algos/firmware/hdl/common/ugmt_constants.vhd
+++ b/uGMT_algos/firmware/hdl/common/ugmt_constants.vhd
@@ -3,9 +3,9 @@ use IEEE.STD_LOGIC_1164.all;
 
 package ugmt_constants is
 
-  constant BUFFER_IN_MU_POS_HIGH : natural := 9;  -- Start position in input
+  constant BUFFER_IN_MU_POS_HIGH : natural := 5;  -- Start position in input
                                                   -- buffer for valid muon.
-  constant BUFFER_IN_MU_POS_LOW  : natural := 4;  -- Start position in input
+  constant BUFFER_IN_MU_POS_LOW  : natural := 0;  -- Start position in input
                                                   -- buffer for valid muon.
 
   -- Start and end positions for buffers for outputs.