diff --git a/Library/Homebrew/formula_auditor.rb b/Library/Homebrew/formula_auditor.rb
index 9a42a7d795..afcfa525f7 100644
--- a/Library/Homebrew/formula_auditor.rb
+++ b/Library/Homebrew/formula_auditor.rb
@@ -235,11 +235,6 @@ module Homebrew
             problem "Dependency '#{dep.name}' was renamed; use new name '#{dep_f.name}'."
           end
 
-          if self.class.aliases.include?(dep.name) && dep_f.core_formula?
-            problem "Dependency '#{dep.name}' from homebrew/core is an alias; " \
-            "use the canonical name '#{dep.to_formula.full_name}'."
-          end
-
           if @core_tap &&
              @new_formula &&
              dep_f.keg_only? &&
@@ -272,6 +267,10 @@ module Homebrew
 
           next unless @core_tap
 
+          if self.class.aliases.include?(dep.name)
+            problem "Dependency '#{dep.name}' is an alias; use the canonical name '#{dep.to_formula.full_name}'."
+          end
+
           if dep.tags.include?(:recommended) || dep.tags.include?(:optional)
             problem "Formulae in homebrew/core should not have optional or recommended dependencies"
           end