1 files changed, 2 insertions, 0 deletions
diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index ef01d0452..f44f67091 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -91,6 +91,8 @@ module Homebrew extend self
   rescue FormulaInstallationAlreadyAttemptedError
     # We already attempted to install f as part of the dependency tree of
     # another formula. In that case, don't generate an error, just move on.
+  rescue FormulaAlreadyInstalledError => e
+    opoo e.message
   rescue CannotInstallFormulaError => e
     ofail e.message
   end