diff --git a/Formula/vf.rb b/Formula/vf.rb
index 210afc111fc..e75abae978b 100644
--- a/Formula/vf.rb
+++ b/Formula/vf.rb
@@ -13,10 +13,11 @@ class Vf < Formula
     prefix.install Dir["*"]
   end
 
-  def caveats; <<~EOS
-    To complete installation, add the following line to your shell's rc file:
-      source #{opt_prefix}/vf.sh
-  EOS
+  def caveats
+    <<~EOS
+      To complete installation, add the following line to your shell's rc file:
+        source #{opt_prefix}/vf.sh
+    EOS
   end
 
   test do