diff --git a/features/FEATURE_BLE/ble/pal/MemorySecurityDB.h b/features/FEATURE_BLE/ble/pal/MemorySecurityDb.h
similarity index 99%
rename from features/FEATURE_BLE/ble/pal/MemorySecurityDB.h
rename to features/FEATURE_BLE/ble/pal/MemorySecurityDb.h
index bde58a186a..1d4bbb209c 100644
--- a/features/FEATURE_BLE/ble/pal/MemorySecurityDB.h
+++ b/features/FEATURE_BLE/ble/pal/MemorySecurityDb.h
@@ -17,7 +17,7 @@
 #ifndef PAL_MEMORY_SECURITY_DB_H_
 #define PAL_MEMORY_SECURITY_DB_H_
 
-#include "SecurityDB.h"
+#include "SecurityDb.h"
 
 namespace ble {
 namespace pal {
diff --git a/features/FEATURE_BLE/ble/pal/SecurityDb.h b/features/FEATURE_BLE/ble/pal/SecurityDb.h
index 39f4729953..dc53e101e8 100644
--- a/features/FEATURE_BLE/ble/pal/SecurityDb.h
+++ b/features/FEATURE_BLE/ble/pal/SecurityDb.h
@@ -84,9 +84,9 @@ struct SecurityEntryIdentity_t {
 };
 
 /**
- * SecurityDB holds the state for active connections and bonded devices.
+ * SecurityDb holds the state for active connections and bonded devices.
  * Keys can be stored in NVM and are returned via callbacks.
- * SecurityDB is responsible for serialising any requests and keeping
+ * SecurityDb is responsible for serialising any requests and keeping
  * the store in a consistent state.
  * Active connections state must be returned immediately.
  */
diff --git a/features/FEATURE_BLE/targets/TARGET_CORDIO/CordioBLE.h b/features/FEATURE_BLE/targets/TARGET_CORDIO/CordioBLE.h
index cdfc1aee48..b74486f1e6 100644
--- a/features/FEATURE_BLE/targets/TARGET_CORDIO/CordioBLE.h
+++ b/features/FEATURE_BLE/targets/TARGET_CORDIO/CordioBLE.h
@@ -30,7 +30,7 @@
 #include "CordioPalGenericAccessService.h"
 #include "ble/generic/GenericGap.h"
 #include "ble/generic/GenericSecurityManager.h"
-#include "ble/pal/MemorySecurityDB.h"
+#include "ble/pal/MemorySecurityDb.h"
 #include "ble/pal/SimpleEventQueue.h"
 
 namespace ble {