diff --git a/src/ieu/aes_instructions/aes64ks1i.sv b/src/ieu/aes_instructions/aes64ks1i.sv
index 0e5a08df6..7336fcd10 100644
--- a/src/ieu/aes_instructions/aes64ks1i.sv
+++ b/src/ieu/aes_instructions/aes64ks1i.sv
@@ -38,7 +38,7 @@ module aes64ks1i(input logic [3:0] roundnum,
    logic [31:0] 		     Sbox_Out;
    
    // Get rcon value from table
-   rcon_Lut_128 rc(.RD(roundnum), .rcon_out(rcon_preshift)); 
+   rcon_lut_128 rc(.RD(roundnum), .rcon_out(rcon_preshift)); 
 
    // Shift RCON value
    assign rcon = {24'b0, rcon_preshift};    
diff --git a/src/ieu/aes_instructions/rcon_lut_128.sv b/src/ieu/aes_instructions/rcon_lut_128.sv
index 6103ea374..89368408d 100644
--- a/src/ieu/aes_instructions/rcon_lut_128.sv
+++ b/src/ieu/aes_instructions/rcon_lut_128.sv
@@ -25,7 +25,7 @@
 // and limitations under the License.
 ////////////////////////////////////////////////////////////////////////////////////////////////
 
-module rcon_Lut_128(input logic [3:0] RD,
+module rcon_lut_128(input logic [3:0] RD,
 		    output logic [7:0] rcon_out);
 	
    always_comb