diff --git a/src/commands/plugins/install.ts b/src/commands/plugins/install.ts
index 67a5f132..535f997c 100644
--- a/src/commands/plugins/install.ts
+++ b/src/commands/plugins/install.ts
@@ -21,6 +21,8 @@ Installation of a user-installed plugin will override a core plugin.
 e.g. If you have a core plugin that has a 'hello' command, installing a user-installed plugin with a 'hello' command will override the core plugin implementation. This is useful if a user needs to update core plugin functionality in the CLI without the need to patch and update the whole CLI.
 `
 
+  public static enableJsonFlag = true
+
   static examples = [
     '$ <%= config.bin %> plugins:install <%- config.pjson.oclif.examplePlugin || "myplugin" %> ',
     '$ <%= config.bin %> plugins:install https://github.com/someuser/someplugin',