lib/asciidoctor/inline.rb in asciidoctor-2.0.8 vs lib/asciidoctor/inline.rb in asciidoctor-2.0.9

@@ -37,10 +37,10 @@
 
   # Public: Returns the converted alt text for this inline image.
   #
   # Returns the [String] value of the alt attribute.
   def alt
-    attr 'alt'
+    (attr 'alt') || ''
   end
 
   # For a reference node (:ref or :bibref), the text is the reftext (and the reftext attribute is not set).
   #
   # (see AbstractNode#reftext?)