diff --git a/src/backend/x64/block_of_code.h b/src/backend/x64/block_of_code.h
index fd5b4ee8..9858bfb4 100644
--- a/src/backend/x64/block_of_code.h
+++ b/src/backend/x64/block_of_code.h
@@ -31,6 +31,8 @@ struct RunCodeCallbacks {
 class BlockOfCode final : public Xbyak::CodeGenerator {
 public:
     BlockOfCode(RunCodeCallbacks cb, JitStateInfo jsi);
+    BlockOfCode(const BlockOfCode&) = delete;
+
     /// Call when external emitters have finished emitting their preludes.
     void PreludeComplete();