diff --git a/Library/Homebrew/cmd/audit.rb b/Library/Homebrew/cmd/audit.rb
index 354858b071..f283771e5c 100755
--- a/Library/Homebrew/cmd/audit.rb
+++ b/Library/Homebrew/cmd/audit.rb
@@ -196,6 +196,12 @@ def audit_formula_instance f
   # Check for things we don't like to depend on.
   # We allow non-Homebrew installs whenenever possible.
   f.deps.each do |d|
+    begin
+      dep_f = Formula.factory d
+    rescue
+      problems << " * Can't find dependency \"#{d}\"."
+    end
+
     case d
     when "git"
       problems << " * Don't use Git as a dependency; we allow non-Homebrew git installs."