1 files changed, 6 insertions, 1 deletions
diff --git a/nqasm.h b/nqasm.h
index e5a7452..3e6ec72 100644
--- a/nqasm.h
+++ b/nqasm.h
@@ -10,6 +10,11 @@ enum {
 	ARG_UNARY_SUB,
 	ARG_UNARY_NOT,
 	ARG_UNARY_INV,
+
+	ARG_ADD,
+	ARG_SUB,
+	ARG_MUL,
+	ARG_DIV,
 };
 
 struct argument {
@@ -17,7 +22,7 @@ struct argument {
 	union {
 		long value;
 		char *label;
-		const struct argument *children[1];
+		const struct argument *children[2];
 	};
 };