diff --git a/bacnet-stack/demo/object/lsp.c b/bacnet-stack/demo/object/lsp.c
index 63080df7..9f574ddb 100644
--- a/bacnet-stack/demo/object/lsp.c
+++ b/bacnet-stack/demo/object/lsp.c
@@ -156,7 +156,8 @@ int Life_Safety_Point_Encode_Property_APDU(uint8_t * apdu,
     unsigned object_index = 0;
     bool state = false;
     BACNET_RELIABILITY reliability = RELIABILITY_NO_FAULT_DETECTED;
-
+
+    (void)array_index; /* currently not used */
     Life_Safety_Point_Init();
     switch (property) {
     case PROP_OBJECT_IDENTIFIER: