diff --git a/texture_resource/packer_image_resource.h b/texture_resource/packer_image_resource.h
index 17235b5..7bb3454 100644
--- a/texture_resource/packer_image_resource.h
+++ b/texture_resource/packer_image_resource.h
@@ -8,7 +8,7 @@ class PackerImageResource : public Texture {
 
 	GDCLASS(PackerImageResource, Texture);
 
-	RES_BASE_EXTENSION("tres");
+	RES_BASE_EXTENSION("restex");
 
 public:
 	int get_width() const;
diff --git a/texture_resource/packer_image_resource_importer.cpp b/texture_resource/packer_image_resource_importer.cpp
index 08dde8e..cdcfecd 100644
--- a/texture_resource/packer_image_resource_importer.cpp
+++ b/texture_resource/packer_image_resource_importer.cpp
@@ -13,7 +13,7 @@ void PackerImageResourceImporter::get_recognized_extensions(List<String> *p_exte
 }
 
 String PackerImageResourceImporter::get_save_extension() const {
-	return "tres";
+	return "restex";
 }
 
 String PackerImageResourceImporter::get_resource_type() const {