diff --git a/src/code_manager/config/config.ts b/src/code_manager/config/config.ts
index 958ef4806..76992e1f1 100644
--- a/src/code_manager/config/config.ts
+++ b/src/code_manager/config/config.ts
@@ -5,6 +5,12 @@ export interface CodeManagerConfig {
    */
   stylePrefix?: string;
 
+  /**
+   * Pass default options to code viewer
+   * @default {}
+   */
+  optsCodeViewer?: Record<string, any>;
+
   /**
    * Inline Css
    * @default false
@@ -15,6 +21,7 @@ export interface CodeManagerConfig {
 const config: CodeManagerConfig = {
   stylePrefix: 'cm-',
   inlineCss: false,
+  optsCodeViewer: {},
 };
 
 export default config;
diff --git a/src/code_manager/index.ts b/src/code_manager/index.ts
index 8f5f4f317..e987bfd5f 100644
--- a/src/code_manager/index.ts
+++ b/src/code_manager/index.ts
@@ -144,7 +144,10 @@ export default class CodeManagerModule extends Module<CodeManagerConfig & { pSty
     const cont = document.createElement('div');
     const txtarea = document.createElement('textarea');
     cont.appendChild(txtarea);
-    viewer.set(opts);
+    viewer.set({
+      ...this.config.optsCodeViewer,
+      ...opts,
+    });
     viewer.init(txtarea);
     viewer.setElement(cont);