diff --git a/sdk/head/ptapi/status.h b/sdk/head/ptapi/status.h
index 439167a..ee297b6 100644
--- a/sdk/head/ptapi/status.h
+++ b/sdk/head/ptapi/status.h
@@ -25,6 +25,7 @@ typedef ULONG PT_STATUS;
 #define STATUS_IO_ERROR         4       /* I/O error */
 #define STATUS_INVALID_PARAM    5       /* Invalid parameter */
 #define STATUS_ACCESS_DENIED    6       /* Access to resource is denied */
+#define STATUS_NOT_FOUND        7       /* Resource not found */
 
 /*
  * Developers are encouraged to use this macro rather than directly