diff --git a/src/plugins/GlobalZeppelinPlugin.ts b/src/plugins/GlobalZeppelinPlugin.ts
index 73f21cef..801c2ee3 100644
--- a/src/plugins/GlobalZeppelinPlugin.ts
+++ b/src/plugins/GlobalZeppelinPlugin.ts
@@ -46,8 +46,8 @@ export class GlobalZeppelinPlugin<TConfig extends {} = IBasePluginConfig> extend
   protected static mergeAndDecodeStaticOptions(options: any): IPluginOptions {
     const defaultOptions: any = this.getStaticDefaultOptions();
     const mergedConfig = mergeConfig({}, defaultOptions.config || {}, options.config || {});
-    const mergedOverrides = options["=overrides"]
-      ? options["=overrides"]
+    const mergedOverrides = options.replaceDefaultOverrides
+      ? options.overrides
       : (options.overrides || []).concat(defaultOptions.overrides || []);
 
     const decodedConfig = this.configSchema ? decodeAndValidateStrict(this.configSchema, mergedConfig) : mergedConfig;
diff --git a/src/plugins/ZeppelinPlugin.ts b/src/plugins/ZeppelinPlugin.ts
index 595232e8..2cb2aab4 100644
--- a/src/plugins/ZeppelinPlugin.ts
+++ b/src/plugins/ZeppelinPlugin.ts
@@ -116,8 +116,8 @@ export class ZeppelinPlugin<TConfig extends {} = IBasePluginConfig> extends Plug
   protected static mergeAndDecodeStaticOptions(options: any): IPluginOptions {
     const defaultOptions: any = this.getStaticDefaultOptions();
     let mergedConfig = mergeConfig({}, defaultOptions.config || {}, options.config || {});
-    const mergedOverrides = options["=overrides"]
-      ? options["=overrides"]
+    const mergedOverrides = options.replaceDefaultOverrides
+      ? options.overrides
       : (options.overrides || []).concat(defaultOptions.overrides || []);
 
     mergedConfig = this.preprocessStaticConfig(mergedConfig);