diff --git a/include/LIEF/MachO/Binary.hpp b/include/LIEF/MachO/Binary.hpp
index 47a43e2b6..8775e7efb 100644
--- a/include/LIEF/MachO/Binary.hpp
+++ b/include/LIEF/MachO/Binary.hpp
@@ -411,8 +411,9 @@ class LIEF_API Binary : public LIEF::Binary  {
   bool extend_segment(const SegmentCommand& segment, size_t size);
 
   /// Extend the **content** of the given Section.
-  /// @note This method may create a gap between the current section and the next one, if `size`
-  ///       is not multiple of the maximum alignment of sections before the current one.
+  /// @note This method may extend the section more than `size` preventing creation a gap
+  ///       between the current section and the next one.
+  ///       This may happen trying to satisfy alignment requirement of sections.
   /// @note This method works only with sections that belong to the first segment.
   bool extend_section(Section& section, size_t size);
 
diff --git a/src/MachO/Binary.cpp b/src/MachO/Binary.cpp
index 58618e87a..2a4665355 100644
--- a/src/MachO/Binary.cpp
+++ b/src/MachO/Binary.cpp
@@ -1305,7 +1305,7 @@ bool Binary::extend_section(Section& section, size_t size) {
   }
 
   // Extend the given `section`.
-  section.size(section.size() + size);
+  section.size(section.size() + shift_value);
 
   return true;
 }