diff --git a/cli/src/generate/render.rs b/cli/src/generate/render.rs
index f33539d6..cf3109c8 100644
--- a/cli/src/generate/render.rs
+++ b/cli/src/generate/render.rs
@@ -1509,6 +1509,7 @@ impl Generator {
         for c in name.chars() {
             match c {
                 '\"' => result += "\\\"",
+                '?' => result += "\\?",
                 '\\' => result += "\\\\",
                 '\u{000c}' => result += "\\f",
                 '\n' => result += "\\n",