diff --git a/Packet_Potato/string_utils.cpp b/Packet_Potato/string_utils.cpp
index afaecf1..96a01a3 100644
--- a/Packet_Potato/string_utils.cpp
+++ b/Packet_Potato/string_utils.cpp
@@ -80,5 +80,8 @@ byte getFrameType(wifi_promiscuous_pkt_type_t type)
 
     case WIFI_PKT_DATA:
     return 2;
+
+    default:
+    return 0;
   }
 }