diff --git a/ivl.def b/ivl.def
index e6cd1b457..c23176ff8 100644
--- a/ivl.def
+++ b/ivl.def
@@ -22,7 +22,7 @@ ivl_event_pos
 ivl_expr_type
 ivl_expr_bits
 ivl_expr_def
-ivl_exor_lsi
+ivl_expr_lsi
 ivl_expr_memory
 ivl_expr_name
 ivl_expr_opcode