diff --git a/lsl_definitions.yaml b/lsl_definitions.yaml
index fa5aa6a..c7a1eaf 100644
--- a/lsl_definitions.yaml
+++ b/lsl_definitions.yaml
@@ -796,6 +796,10 @@ constants:
       \t5) Positive rated building\n\t\t\t6) Negative rated building"
     type: integer
     value: 4
+  DATA_RESERVED_0:
+    tooltip: "Reserved for Linden use."
+    type: integer
+    value: 9
   DATA_SIM_POS:
     tooltip: ''
     type: integer