diff --git a/bin/wkhtmltopdf b/bin/wkhtmltopdf
index ec51b172..2662960a 100755
--- a/bin/wkhtmltopdf
+++ b/bin/wkhtmltopdf
@@ -5,6 +5,8 @@ arch = case RUBY_PLATFORM
     'linux-amd64'
   when /linux/
     'linux-x86'
+  when /64.*darwin/
+    'darwin-x86_64'
   when /darwin/
     'darwin-x86'
   else
diff --git a/libexec/wkhtmltopdf-darwin-x86 b/libexec/wkhtmltopdf-darwin-x86
index 8e6197f8..39f8ae00 100755
Binary files a/libexec/wkhtmltopdf-darwin-x86 and b/libexec/wkhtmltopdf-darwin-x86 differ
diff --git a/libexec/wkhtmltopdf-darwin-x86_64 b/libexec/wkhtmltopdf-darwin-x86_64
new file mode 100755
index 00000000..bb7039d3
Binary files /dev/null and b/libexec/wkhtmltopdf-darwin-x86_64 differ
diff --git a/libexec/wkhtmltopdf-linux-amd64 b/libexec/wkhtmltopdf-linux-amd64
index a173d2cf..5c492824 100755
Binary files a/libexec/wkhtmltopdf-linux-amd64 and b/libexec/wkhtmltopdf-linux-amd64 differ
diff --git a/libexec/wkhtmltopdf-linux-x86 b/libexec/wkhtmltopdf-linux-x86
index 0a5de4ad..6f030bb8 100755
Binary files a/libexec/wkhtmltopdf-linux-x86 and b/libexec/wkhtmltopdf-linux-x86 differ