diff --git a/dashcam-transfer.py b/dashcam-transfer.py
index c62465f..d5f1bfe 100644
--- a/dashcam-transfer.py
+++ b/dashcam-transfer.py
@@ -109,14 +109,15 @@ WHATSAPP_API = "http://100.97.199.84:3000/client/sendMessage/EdGpt"
 WHATSAPP_CHAT = "31620248011@c.us"
 
 
-def send_whatsapp_notification(ok, errors):
+def send_whatsapp_notification(ok, errors, total_bytes):
     if errors == 0:
         prefix = "✅"
         status = "geen fouten"
     else:
         prefix = "❌"
         status = f"{errors} fout(en)"
-    body = f"{prefix} Dashcam transfer voltooid: {ok} bestanden overgezet, {status}"
+    gb = total_bytes / (1024 ** 3)
+    body = f"{prefix} Dashcam transfer voltooid: {ok} bestanden ({gb:.1f} GB) overgezet, {status}"
     payload = {"chatId": WHATSAPP_CHAT, "content": body, "contentType": "string"}
     try:
         data = json.dumps(payload).encode()
@@ -213,7 +214,7 @@ def main():
         ok += 1
 
     logging.info("Transfer voltooid: %d ok, %d fouten", ok, errors)
-    send_whatsapp_notification(ok, errors)
+    send_whatsapp_notification(ok, errors, total_size)
 
 
 if __name__ == "__main__":