1 files changed, 1 insertions, 1 deletions
diff --git a/lib/ffi/struct.rb b/lib/ffi/struct.rb
index 1283d63..725b9cb 100644
--- a/lib/ffi/struct.rb
+++ b/lib/ffi/struct.rb
@@ -219,7 +219,7 @@ module FFI
         end
         builder.size = @size if defined?(@size) && @size > builder.size
         cspec = builder.build
-        @layout = FFI.make_shareable(cspec) unless self == Struct
+        @layout = cspec unless self == Struct
         @size = cspec.size
         return cspec
       end