diff --git a/TODO.md b/TODO.md
index 8a44fa1f..fcd37292 100644
--- a/TODO.md
+++ b/TODO.md
@@ -51,6 +51,7 @@
 - [x] Builtin functions: max(), min(), len()
 - [x] Function call (to builtin)
 - [x] Int arithmetic: +
+- [ ] Int: bitwise not
 - [ ] Int: shift right / left
 - [ ] Int: subtraction
 - [ ] Publish doc
diff --git a/qlasskit/compiler/poccompiler2.py b/qlasskit/compiler/poccompiler2.py
index a5f83f87..65c59947 100644
--- a/qlasskit/compiler/poccompiler2.py
+++ b/qlasskit/compiler/poccompiler2.py
@@ -78,7 +78,7 @@ def compile(self, name, args: Args, ret_size: int, exprs: BoolExpList) -> QCircu
 
         return qc
 
-    def compile_expr(self, qc: QCircuit, expr: Boolean) -> int:
+    def compile_expr(self, qc: QCircuit, expr: Boolean) -> int:  # noqa: C901
         if isinstance(expr, Symbol):
             return qc[expr.name]