diff --git a/picorv32.v b/picorv32.v
index 99ac859..e644f1e 100644
--- a/picorv32.v
+++ b/picorv32.v
@@ -43,7 +43,6 @@
  ***************************************************************/
 
 module picorv32 #(
-    parameter [0:0] TWO_STAGE_SHIFT = 1,
     parameter [0:0] BARREL_SHIFTER = 0,
     parameter [0:0] ENABLE_TRACE = 0,
     parameter [31:0] MASKED_IRQ = 32'h0000_0000,
@@ -1272,7 +1271,7 @@ module picorv32 #(
             reg_out <= reg_op1;
             mem_do_rinst <= mem_do_prefetch;
             cpu_state <= cpu_state_fetch;
-          end else if (TWO_STAGE_SHIFT && reg_sh >= 4) begin
+          end else if (reg_sh >= 4) begin
             (* parallel_case, full_case *)
             case (1'b1)
               instr_slli || instr_sll: reg_op1 <= reg_op1 << 4;