diff --git a/apps/mosquitto_passwd/get_password.c b/apps/mosquitto_passwd/get_password.c
index 42842536..45724b21 100644
--- a/apps/mosquitto_passwd/get_password.c
+++ b/apps/mosquitto_passwd/get_password.c
@@ -38,7 +38,6 @@ Contributors:
 #include "get_password.h"
 
 #define MAX_BUFFER_LEN 65500
-#define SALT_LEN 12
 
 void get_password__reset_term(void)
 {
diff --git a/apps/mosquitto_passwd/mosquitto_passwd.c b/apps/mosquitto_passwd/mosquitto_passwd.c
index 5a5a04f4..08d41892 100644
--- a/apps/mosquitto_passwd/mosquitto_passwd.c
+++ b/apps/mosquitto_passwd/mosquitto_passwd.c
@@ -53,7 +53,6 @@ Contributors:
 #endif
 
 #define MAX_BUFFER_LEN 65500
-#define SALT_LEN 12
 
 #include "misc_mosq.h"
 
diff --git a/src/password_mosq.c b/src/password_mosq.c
index b8836f45..65c7cb77 100644
--- a/src/password_mosq.c
+++ b/src/password_mosq.c
@@ -57,7 +57,6 @@ Contributors:
 #endif
 
 #define MAX_BUFFER_LEN 65536
-#define SALT_LEN 12
 
 #ifdef WITH_TLS
 int base64__encode(unsigned char *in, unsigned int in_len, char **encoded)