diff --git a/src/ieu/extend.sv b/src/ieu/extend.sv
index 70a429b16..e0551e9dc 100644
--- a/src/ieu/extend.sv
+++ b/src/ieu/extend.sv
@@ -30,7 +30,7 @@
 module extend #(parameter XLEN, A_SUPPORTED) (
   input  logic [31:7]       InstrD,      // All instruction bits except opcode (lower 7 bits)
   input  logic [2:0]        ImmSrcD,     // Select what kind of extension to perform
-  output logic [XLEN-1:0 ] ImmExtD);    // Extended immediate
+  output logic [XLEN-1:0]   ImmExtD);    // Extended immediate
 
   localparam [XLEN-1:0] undefined = {(XLEN){1'bx}}; // could change to 0 after debug
  
@@ -45,10 +45,10 @@ module extend #(parameter XLEN, A_SUPPORTED) (
       // J-type (jal)
       3'b011:   ImmExtD = {{(XLEN-20){InstrD[31]}}, InstrD[19:12], InstrD[20], InstrD[30:21], 1'b0}; 
       // U-type (lui, auipc)
-      3'b100:  ImmExtD = {{(XLEN-31){InstrD[31]}}, InstrD[30:12], 12'b0}; 
+      3'b100:   ImmExtD = {{(XLEN-31){InstrD[31]}}, InstrD[30:12], 12'b0}; 
       // Store Conditional: zero offset
       3'b101:  if (A_SUPPORTED) ImmExtD = 0;
-               else              ImmExtD = undefined;
+               else             ImmExtD = undefined;
       default: ImmExtD = undefined; // undefined
     endcase  
 endmodule