diff --git a/binding-mri/binding-util.h b/binding-mri/binding-util.h
index b4fd142..784f9a7 100644
--- a/binding-mri/binding-util.h
+++ b/binding-mri/binding-util.h
@@ -199,14 +199,14 @@ rb_bool_new(bool value)
 #define INITCOPY_FUN(Klass) \
 	RB_METHOD(Klass##InitializeCopy) \
 	{ \
-		VALUE orig; \
-		rb_get_args(argc, argv, "o", &orig, RB_ARG_END); \
-		if (!OBJ_INIT_COPY(self, orig)) /* When would this fail??*/\
+		VALUE origObj; \
+		rb_get_args(argc, argv, "o", &origObj, RB_ARG_END); \
+		if (!OBJ_INIT_COPY(self, origObj)) /* When would this fail??*/\
 			return self; \
-		Klass *k = getPrivateData<Klass>(orig); \
-		Klass *dup = 0; \
-		GUARD_EXC( dup = new Klass(*k); ) \
-		setPrivateData(self, dup); \
+		Klass *orig = getPrivateData<Klass>(origObj); \
+		Klass *k = 0; \
+		GUARD_EXC( k = new Klass(*orig); ) \
+		setPrivateData(self, k); \
 		return self; \
 	}
 
diff --git a/binding-mri/font-binding.cpp b/binding-mri/font-binding.cpp
index 819e568..f8c8478 100644
--- a/binding-mri/font-binding.cpp
+++ b/binding-mri/font-binding.cpp
@@ -56,15 +56,15 @@ RB_METHOD(fontInitialize)
 
 RB_METHOD(fontInitializeCopy)
 {
-	VALUE orig;
-	rb_get_args(argc, argv, "o", &orig, RB_ARG_END);
+	VALUE origObj;
+	rb_get_args(argc, argv, "o", &origObj, RB_ARG_END);
 
-	if (!OBJ_INIT_COPY(self, orig))
+	if (!OBJ_INIT_COPY(self, origObj))
 		return self;
 
-	Font *f = getPrivateData<Font>(orig);
-	Font *dup = new Font(*f);
-	setPrivateData(self, dup);
+	Font *orig = getPrivateData<Font>(origObj);
+	Font *f = new Font(*orig);
+	setPrivateData(self, f);
 
 	/* Wrap property objects */
 	f->setColor(new Color(*f->getColor()));