diff --git a/connectivity/FEATURE_BLE/libraries/ble-api-implementation/source/GattServerImpl.cpp b/connectivity/FEATURE_BLE/libraries/ble-api-implementation/source/GattServerImpl.cpp
index fe02337830..45de631519 100644
--- a/connectivity/FEATURE_BLE/libraries/ble-api-implementation/source/GattServerImpl.cpp
+++ b/connectivity/FEATURE_BLE/libraries/ble-api-implementation/source/GattServerImpl.cpp
@@ -329,6 +329,7 @@ ble_error_t GattServer::insert_characteristic_value_attribute(
     }
     if (properties & WRITABLE_PROPERTIES) {
         attribute_it->settings |= ATTS_SET_WRITE_CBACK;
+        attribute_it->settings |= ATTS_SET_ALLOW_OFFSET;
     }
     if (value_attribute.getUUID().shortOrLong() == UUID::UUID_TYPE_LONG) {
         attribute_it->settings |= ATTS_SET_UUID_128;