diff --git a/src/frontend/ir/microinstruction.cpp b/src/frontend/ir/microinstruction.cpp
index 2d2ef31a..c0416023 100644
--- a/src/frontend/ir/microinstruction.cpp
+++ b/src/frontend/ir/microinstruction.cpp
@@ -300,7 +300,7 @@ void Inst::Invalidate() {
     }
 }
 
-void Inst::ReplaceUsesWith(Value& replacement) {
+void Inst::ReplaceUsesWith(Value replacement) {
     Invalidate();
 
     op = Opcode::Identity;
diff --git a/src/frontend/ir/microinstruction.h b/src/frontend/ir/microinstruction.h
index 12bcf9f2..54462671 100644
--- a/src/frontend/ir/microinstruction.h
+++ b/src/frontend/ir/microinstruction.h
@@ -95,7 +95,7 @@ public:
 
     void Invalidate();
 
-    void ReplaceUsesWith(Value& replacement);
+    void ReplaceUsesWith(Value replacement);
 
 private:
     void Use(Value& value);