diff --git a/Library/Homebrew/cmd/pin.rb b/Library/Homebrew/cmd/pin.rb
index 91a9608efe..e298c5bec8 100644
--- a/Library/Homebrew/cmd/pin.rb
+++ b/Library/Homebrew/cmd/pin.rb
@@ -23,9 +23,9 @@ module Homebrew
       def run
         args.named.to_resolved_formulae.each do |f|
           if f.pinned?
-            opoo "#{f.name} already pinned"
+            ofail "#{f.name} already pinned"
           elsif !f.pinnable?
-            onoe "#{f.name} not installed"
+            ofail "#{f.name} not installed"
           else
             f.pin
           end
diff --git a/Library/Homebrew/test/cmd/pin_spec.rb b/Library/Homebrew/test/cmd/pin_spec.rb
index 15c978f032..782d970402 100644
--- a/Library/Homebrew/test/cmd/pin_spec.rb
+++ b/Library/Homebrew/test/cmd/pin_spec.rb
@@ -11,4 +11,10 @@ RSpec.describe Homebrew::Cmd::Pin do
 
     expect { brew "pin", "testball" }.to be_a_success
   end
+
+  it "fails with an uninstalled Formula", :integration_test do
+    setup_test_formula "testball"
+
+    expect { brew "pin", "testball" }.to be_a_failure
+  end
 end