2 files changed, 2 insertions, 2 deletions

diff --git a/rc4.c b/rc4.c
index 559359a22ee5..471294d5e55f 100644
--- a/rc4.c
+++ b/rc4.c
@@ -28,7 +28,7 @@ char* rc4_ncurses_get_password(void) {
     return (char*) pass;
 }
 
-void rc4_encode_string(String* pString, char password[PASS_MAX]) {
+void rc4_encode_string(String* pString, const char password[PASS_MAX]) {
     int keySchedule[256];
     size_t key_len = strlen(password);
     int j = 0, out;
diff --git a/rc4.h b/rc4.h
index e21f4a838194..e44a30d89744 100644
--- a/rc4.h
+++ b/rc4.h
@@ -24,7 +24,7 @@ char* rc4_ncurses_get_password(void);
  * @param pString The String to encode.
  * @param password the key used to encode
  */
-void rc4_encode_string(String* pString, char password[PASS_MAX]);
+void rc4_encode_string(String* pString, const char password[PASS_MAX]);
 
 int rc4_ncurses_decrypt_string(String* pString, char* password_ref[PASS_MAX]);