diff --git a/src/core/hle/service/btm/btm.cpp b/src/core/hle/service/btm/btm.cpp
index 9cf2ee92a8..d1ebc23881 100644
--- a/src/core/hle/service/btm/btm.cpp
+++ b/src/core/hle/service/btm/btm.cpp
@@ -223,6 +223,7 @@ public:
             {10, nullptr, "GetGattClientDisconnectionReason"},
             {11, nullptr, "GetBleConnectionParameter"},
             {12, nullptr, "GetBleConnectionParameterRequest"},
+            {13, nullptr, "Unknown13"},
         };
         // clang-format on