diff --git a/Formula/cfssl.rb b/Formula/cfssl.rb
index 619ecc8016..091f9e7f5f 100644
--- a/Formula/cfssl.rb
+++ b/Formula/cfssl.rb
@@ -13,7 +13,7 @@ class Cfssl < Formula
   end
 
   depends_on "go" => :build
-  depends_on "libtool" => :run
+  depends_on "libtool"
 
   def install
     ENV["GOPATH"] = buildpath