diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 42af74c223..9976d5bd64 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -346,13 +346,20 @@ end
 
 def forbidden_license_check(f)
   forbidden_licenses = ENV["HOMEBREW_FORBIDDEN_LICENSES"].split(" ")
+
+  if forbidden_licenses.include? f.license
+    raise CannotInstallFormulaError , <<~EOS
+        #{f.name} has a forbidden license #{f.license}.
+    EOS
+  end
+
   fi = FormulaInstaller.new(f)
   fi.compute_dependencies.each do |dep, _|
     dep_f = dep.to_formula
     next unless forbidden_licenses.include? dep_f.license
 
     raise CannotInstallFormulaError, <<~EOS
-      #The installation of {f.name} has a dependency on #{dep.name} with a forbidden license #{dep_f.license}
+      The installation of #{f.name} has a dependency on #{dep.name} with a forbidden license #{dep_f.license}.
     EOS
   end
 end