diff --git a/ble/central_device_db_memory.c b/ble/central_device_db_memory.c
index 92198c511..000f4951b 100644
--- a/ble/central_device_db_memory.c
+++ b/ble/central_device_db_memory.c
@@ -37,7 +37,7 @@
 #include "central_device_db.h"
 
 #include <stdio.h>
-#include <strings.h>
+#include <string.h>
 
 // Central Device db implemenation using static memory
 typedef struct central_device_memory_db {
diff --git a/ble/sm.c b/ble/sm.c
index 99313bded..c85d21f76 100644
--- a/ble/sm.c
+++ b/ble/sm.c
@@ -35,7 +35,7 @@
  */
  
 #include <stdio.h>
-#include <strings.h>
+#include <string.h>
 
 #include "debug.h"
 #include "hci.h"