diff --git a/lib/rex/peparsey/section.rb b/lib/rex/peparsey/section.rb
index ddf3968..a9dfa29 100644
--- a/lib/rex/peparsey/section.rb
+++ b/lib/rex/peparsey/section.rb
@@ -112,7 +112,7 @@ def rva_to_file_offset(rva)
   end
 
   def contains_offset?(offset)
-    offset >= 0 && offset < size
+    offset >= 0 && offset <= size
   end
 
   def contains_file_offset?(foffset)