diff --git a/src/ble/le_device_db.h b/src/ble/le_device_db.h
index ecc741aea..5e8668434 100644
--- a/src/ble/le_device_db.h
+++ b/src/ble/le_device_db.h
@@ -39,6 +39,7 @@
 #define __LE_DEVICE_DB_H
 
 #include "btstack_util.h"
+#include "btstack_config.h"
 
 #if defined __cplusplus
 extern "C" {
diff --git a/test/btstack_config.h b/test/btstack_config.h
index 7d4ad80ba..ac60c0f18 100644
--- a/test/btstack_config.h
+++ b/test/btstack_config.h
@@ -27,5 +27,6 @@
 // BTstack configuration. buffers, sizes, ...
 #define HCI_ACL_PAYLOAD_SIZE 52
 #define HCI_INCOMING_PRE_BUFFER_SIZE 4
+#define MAX_NR_LE_DEVICE_DB_ENTRIES 1
 
 #endif