diff --git a/user-side-compiler/backend/code-generator.lisp b/user-side-compiler/backend/code-generator.lisp
index 13d6547..8701434 100644
--- a/user-side-compiler/backend/code-generator.lisp
+++ b/user-side-compiler/backend/code-generator.lisp
@@ -329,6 +329,7 @@ is the responsibility of the pre-assembly compilation step."
 
 (defun compile-iblock (iblock)
   (emit-asm-label (name iblock))
+  (setf *last-instruction* :useless)
   (do-instructions (inst iblock)
     (compile-ir inst)))