diff --git a/dap_test_generator.c b/dap_test_generator.c
index bf8738e9d20f12455d1ed473d1c2c20beacdabcc..a3d4bf513ecb190275394c0f266f453ebe1a5dab 100644
--- a/dap_test_generator.c
+++ b/dap_test_generator.c
@@ -1,6 +1,7 @@
 #include "dap_test_generator.h"
 
-void generate_random_byte_array(uint8_t* array, const size_t size, const int BYTE_SIZE) {
+#define BYTE_SIZE 255
+void generate_random_byte_array(uint8_t* array, const size_t size) {
     srand((uint)time(NULL));
     for(size_t i = 0; i < size; i++) {
         array[i] = (uint8_t)rand() % BYTE_SIZE;
diff --git a/dap_test_generator.h b/dap_test_generator.h
index b81bbf8ef6bf3c7c0f17787b57d4bb06f58d34b7..4c74064744cb844c864d14faf72d7e555a54b7e0 100755
--- a/dap_test_generator.h
+++ b/dap_test_generator.h
@@ -3,5 +3,5 @@
 #include <stdlib.h>
 #include <time.h>
 
-void generate_random_byte_array(uint8_t* array, const size_t size, const int BYTE_SIZE);
+void generate_random_byte_array(uint8_t* array, const size_t size);