diff --git a/compiler/generator/rust/rust_code_container.cpp b/compiler/generator/rust/rust_code_container.cpp
index 9e1b201d29..4b2d89ddbb 100644
--- a/compiler/generator/rust/rust_code_container.cpp
+++ b/compiler/generator/rust/rust_code_container.cpp
@@ -176,6 +176,8 @@ void RustCodeContainer::produceClass()
     tab(n, *fOut);
     *fOut << "#[cfg_attr(feature = \"default-boxed\", derive(default_boxed::DefaultBoxed))]";
     tab(n, *fOut);
+    *fOut << "#[repr(C)]";
+    tab(n, *fOut);
     *fOut << "pub struct " << fKlassName << " {";
     tab(n + 1, *fOut);