diff --git a/source/to_cpp1.h b/source/to_cpp1.h
index 6e0d02e56..70f550359 100644
--- a/source/to_cpp1.h
+++ b/source/to_cpp1.h
@@ -4109,6 +4109,8 @@ class cppfront
                         && (
                             x.op->type() == lexeme::Slash
                             || x.op->type() == lexeme::SlashEq
+                            || x.op->type() == lexeme::Modulo
+                            || x.op->type() == lexeme::ModuloEq
                             )
                         )
                     {