diff --git a/include/avian/codegen/compiler.h b/include/avian/codegen/compiler.h
index fb34919a03..fb10b3a680 100644
--- a/include/avian/codegen/compiler.h
+++ b/include/avian/codegen/compiler.h
@@ -110,8 +110,7 @@ class Compiler {
                                         ir::Type truncateType,
                                         ir::Value* src) = 0;
 
-  virtual ir::Value* truncate(ir::Type type, ir::Type srcType, ir::Value* src)
-      = 0;
+  virtual ir::Value* truncate(ir::Type type, ir::Value* src) = 0;
 
   virtual void store(ir::Type srcType, ir::Value* src, ir::Value* dst) = 0;
   virtual ir::Value* load(ir::SignExtendMode signExtend,
diff --git a/src/codegen/compiler.cpp b/src/codegen/compiler.cpp
index dc9c6dd79e..e833a1d591 100644
--- a/src/codegen/compiler.cpp
+++ b/src/codegen/compiler.cpp
@@ -2560,17 +2560,16 @@ class MyCompiler: public Compiler {
                       static_cast<Value*>(index), handler);
   }
 
-  virtual ir::Value* truncate(ir::Type type, ir::Type srcType, ir::Value* src)
+  virtual ir::Value* truncate(ir::Type type, ir::Value* src)
   {
-    assert(&c, srcType == src->type);
     assert(&c, src->type.flavor() == type.flavor());
     assert(&c, type.flavor() != ir::Type::Float);
     assert(&c, type.size() < src->type.size());
     Value* dst = value(&c, type);
     appendMove(&c,
                lir::Move,
-               srcType.size(),
-               srcType.size(),
+               src->type.size(),
+               src->type.size(),
                static_cast<Value*>(src),
                type.size(),
                dst);
diff --git a/src/compile.cpp b/src/compile.cpp
index 660a53e908..cc83db899d 100644
--- a/src/compile.cpp
+++ b/src/compile.cpp
@@ -5329,7 +5329,7 @@ compile(MyThread* t, Frame* initialFrame, unsigned initialIp,
     } break;
 
     case l2i:
-      frame->pushInt(c->truncate(types.i4, types.i8, frame->popLong()));
+      frame->pushInt(c->truncate(types.i4, frame->popLong()));
       break;
 
     case ladd: