diff --git a/lib/commands/env/add.ts b/lib/commands/env/add.ts
index 318717da..479e03c4 100644
--- a/lib/commands/env/add.ts
+++ b/lib/commands/env/add.ts
@@ -90,6 +90,8 @@ export default class EnvAddCmd extends Command {
 		}),
 	};
 
+	// Required for supporting empty string ('') `value` args.
+	public static strict = false;
 	public static usage = 'env add <name> [value]';
 
 	public static flags = {