diff --git a/src/blecsan.cpp b/src/blecsan.cpp
index 51b6a563..41678a2f 100644
--- a/src/blecsan.cpp
+++ b/src/blecsan.cpp
@@ -235,7 +235,7 @@ void bt_loop(void * pvParameters)
 	// Initialize BT controller to allocate task and other resource. 
 	ESP_LOGI(TAG, "Enabling Bluetooth Controller");
 	esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
-	bt_cfg.controller_task_stack_size = 8192; // double BT stack size
+	bt_cfg.controller_task_stack_size = BLESTACKSIZE; // set BT stack size to value configured in paxcounter.conf
 
 	if (esp_bt_controller_init(&bt_cfg) != ESP_OK) 
 	{
diff --git a/src/paxcounter.conf b/src/paxcounter.conf
index cc953b6b..8ab4da35 100644
--- a/src/paxcounter.conf
+++ b/src/paxcounter.conf
@@ -10,6 +10,7 @@
 #define BLECOUNTER                      1       // comment out if you don't want BLE count
 
 // BLE scan parameters
+#define BLESTACKSIZE                    8192    // stack size for esp_bt_controller
 #define BLESCANTIME                     11      // [seconds] scan duration, see note below
 #define BLESCANWINDOW                   10      // [milliseconds] scan window, see below, 3 .. 10240, default 10
 #define BLESCANINTERVAL                 10      // [milliseconds] how long to wait between scans, 3 .. 10240, default 10