diff --git a/esphome/components/bluetooth_proxy/bluetooth_connection.cpp b/esphome/components/bluetooth_proxy/bluetooth_connection.cpp
index 2f350d74fc..dee5977e5f 100644
--- a/esphome/components/bluetooth_proxy/bluetooth_connection.cpp
+++ b/esphome/components/bluetooth_proxy/bluetooth_connection.cpp
@@ -294,9 +294,9 @@ void BluetoothConnection::send_service_for_discovery_() {
     current_size += service_size;
 
     // Log the difference between estimate and actual size
-    int size_diff = (int) service_size - (int) estimated_size;
     ESP_LOGV(TAG, "[%d] [%s] Service %d actual: %d, estimated: %d, diff: %+d", this->connection_index_,
-             this->address_str().c_str(), this->send_service_, service_size, estimated_size, size_diff);
+             this->address_str().c_str(), this->send_service_, service_size, estimated_size,
+             (int) service_size - (int) estimated_size);
 
     // Successfully added this service, increment counter
     this->send_service_++;