diff --git a/Library/Homebrew/formula_cellar_checks.rb b/Library/Homebrew/formula_cellar_checks.rb
index 4718fc1a0e..6c433e420d 100644
--- a/Library/Homebrew/formula_cellar_checks.rb
+++ b/Library/Homebrew/formula_cellar_checks.rb
@@ -157,7 +157,7 @@ module FormulaCellarChecks
     problem_if_output(check_manpages)
     problem_if_output(check_infopages)
     problem_if_output(check_jars)
-    problem_if_output(check_non_libraries)
+    problem_if_output(check_non_libraries) if @new_formula
     problem_if_output(check_non_executables(formula.bin))
     problem_if_output(check_generic_executables(formula.bin))
     problem_if_output(check_non_executables(formula.sbin))