diff --git a/public/dt_common.h b/public/dt_common.h
index 1d311deb..bcd5f750 100644
--- a/public/dt_common.h
+++ b/public/dt_common.h
@@ -103,6 +103,7 @@ typedef enum
 	DPT_Int=0,
 	DPT_Float,
 	DPT_Vector,
+	DPT_VectorXY,
 	DPT_String,
 	DPT_Array,	// An array of the base types (can't be of datatables).
 	DPT_DataTable,