diff --git a/lib/nodegen.js b/lib/nodegen.js
index e85951b..005fd75 100644
--- a/lib/nodegen.js
+++ b/lib/nodegen.js
@@ -199,6 +199,8 @@ function swagger2node(data, options) {
             }
         } else if (key === 'default') { // 3. Handle swagger-js-codegen bug
             return undefined;
+        } else if (key === 'operationId') { // 4. Sanitize 'operationId' (remove special chars)
+			return value.replace(/(?!\w|\s)./g, '');
         } else {
             return value;
         }