diff --git a/lib/weasyprint/weasyprint.rb b/lib/weasyprint/weasyprint.rb
index f6480313..2d76ed84 100644
--- a/lib/weasyprint/weasyprint.rb
+++ b/lib/weasyprint/weasyprint.rb
@@ -27,7 +27,7 @@ def initialize(url_file_or_html, options = {})
     @options = WeasyPrint.configuration.default_options.merge(options)
     @options = normalize_options(@options)
 
-    raise NoExecutableError.new unless File.exists?(WeasyPrint.configuration.weasyprint)
+    raise NoExecutableError.new unless File.exist?(WeasyPrint.configuration.weasyprint)
   end
 
   def command(path = nil)