diff --git a/src/block.zig b/src/block.zig
index 95576f4..8031f24 100644
--- a/src/block.zig
+++ b/src/block.zig
@@ -111,7 +111,6 @@ pub fn Block(
                     _Block_object_dispose(@field(real_src, field.name), 3);
                 }
             }
-            alloc.free(std.mem.sliceTo(real_src.descriptor.signature.?, 0));
             alloc.destroy(real_src.descriptor);
         }