diff --git a/src/ieu/bmu/zbb.sv b/src/ieu/bmu/zbb.sv
index fef8579b5..a85114b55 100644
--- a/src/ieu/bmu/zbb.sv
+++ b/src/ieu/bmu/zbb.sv
@@ -34,11 +34,11 @@ module zbb #(parameter WIDTH=32) (
   input  logic [WIDTH-1:0] A, RevA, B,   // Operands
   input  logic             W64,          // Indicates word operation
   input  logic             lt,           // lt flag
-  input  logic [2:0]       ZBBSelect,    // Indicates word operation
+  input  logic [2:0]       ZBBSelect,    // ZBB Result select signal
   output logic [WIDTH-1:0] ZBBResult);   // ZBB result
   
   logic [WIDTH-1:0] CntResult;           // count result
-  logic [WIDTH-1:0] MinMaxResult;        // min,max result
+  logic [WIDTH-1:0] MinMaxResult;        // min, max result
   logic [WIDTH-1:0] ByteResult;          // byte results
   logic [WIDTH-1:0] ExtResult;           // sign/zero extend results