diff --git a/src/ieu/aes/aes64d.sv b/src/ieu/aes/aes64d.sv
index 8934f74c3..517dd4bf0 100644
--- a/src/ieu/aes/aes64d.sv
+++ b/src/ieu/aes/aes64d.sv
@@ -32,7 +32,7 @@ module aes64d(
    output logic [63:0] result
 );
    
-   logic [63:0] 		    ShiftRowsOut, SboxOut, MixcolIn, MixcolOut;
+   logic [63:0] 		    ShiftRowsOut, SboxOut, MixcolsIn, MixcolsOut;
    
    // Apply inverse shiftrows to rs2 and rs1
    aesinvshiftrows64 srow({rs2, rs1}, ShiftRowsOut);
@@ -40,12 +40,12 @@ module aes64d(
    // Apply full word inverse substitution to lower doubleord of shiftrow out
    aesinvsbox64 invsbox(ShiftRowsOut,  SboxOut);
    
-   mux2 #(64) mixcolmux(SboxOut, rs1, aes64im, MixcolIn);
+   mux2 #(64) mixcolmux(SboxOut, rs1, aes64im, MixcolsIn);
    
    // Apply inverse MixColumns to sbox outputs
-   aesinvmixcolumns32 invmw0(MixcolIn[31:0], MixcolOut[31:0]);
-   aesinvmixcolumns32 invmw1(MixcolIn[63:32], MixcolOut[63:32]);
+   aesinvmixcolumns32 invmw0(MixcolsIn[31:0], MixcolsOut[31:0]);
+   aesinvmixcolumns32 invmw1(MixcolsIn[63:32], MixcolsOut[63:32]);
    
    // Final round skips mixcolumns.
-   mux2 #(64) resultmux(MixcolOut, SboxOut, finalround, result);
+   mux2 #(64) resultmux(MixcolsOut, SboxOut, finalround, result);
 endmodule
diff --git a/src/ieu/aes/aes64e.sv b/src/ieu/aes/aes64e.sv
index f40535d8d..f4b59178a 100644
--- a/src/ieu/aes/aes64e.sv
+++ b/src/ieu/aes/aes64e.sv
@@ -34,7 +34,7 @@ module aes64e(
     output logic [63:0] result
 );
   
-    logic [63:0]  ShiftRowsOut, SboxOut, MixcolOut;
+    logic [63:0]  ShiftRowsOut, SboxOut, MixcolsOut;
                 
     // AES shiftrow unit
     aesshiftrows64 srow({rs2,rs1}, ShiftRowsOut);
@@ -47,9 +47,9 @@ module aes64e(
     aessbox32 sbox1(ShiftRowsOut[63:32], SboxOut[63:32]); // instantiate second sbox
 
     // Apply MixColumns operations
-    aesmixcolumns32 mw0(SboxOut[31:0],  MixcolOut[31:0]);
-    aesmixcolumns32 mw1(SboxOut[63:32], MixcolOut[63:32]);
+    aesmixcolumns32 mw0(SboxOut[31:0],  MixcolsOut[31:0]);
+    aesmixcolumns32 mw1(SboxOut[63:32], MixcolsOut[63:32]);
 
     // Skip mixcolumns on last round
-    mux2 #(64) resultmux(MixcolOut, SboxOut, finalround, result);
+    mux2 #(64) resultmux(MixcolsOut, SboxOut, finalround, result);
 endmodule