diff --git a/sys/arch/macppc/dev/smuiic.c b/sys/arch/macppc/dev/smuiic.c
index 831ba0438d9e..f13fa41106f7 100644
--- a/sys/arch/macppc/dev/smuiic.c
+++ b/sys/arch/macppc/dev/smuiic.c
@@ -100,8 +100,8 @@ smuiic_attach(device_t parent, device_t self, void *aux)
 			goto skip;
 		addr = (addr & 0xff) >> 1;
 		dev = prop_dictionary_create();
-		prop_dictionary_set_cstring(dev, "name", name);
-		data = prop_data_create_data(compat, strlen(compat)+1);
+		prop_dictionary_set_string(dev, "name", name);
+		data = prop_data_create_copy(compat, strlen(compat)+1);
 		prop_dictionary_set(dev, "compatible", data);
 		prop_object_release(data);
 		prop_dictionary_set_uint32(dev, "addr", addr);