diff --git a/cli/src/generate/build_tables/build_lex_table.rs b/cli/src/generate/build_tables/build_lex_table.rs
index f1d1acf1..42a95e4c 100644
--- a/cli/src/generate/build_tables/build_lex_table.rs
+++ b/cli/src/generate/build_tables/build_lex_table.rs
@@ -294,6 +294,7 @@ fn minimize_lex_table(table: &mut LexTable, parse_table: &mut ParseTable) {
         .into_iter()
         .map(|e| e.1)
         .collect::<Vec<_>>();
+    state_ids_by_group_id.sort();
     let error_group_index = state_ids_by_group_id
         .iter()
         .position(|g| g.contains(&0))