diff --git a/modules/imgfmt/HGOfdImpl.cpp b/modules/imgfmt/HGOfdImpl.cpp
index 1a6ed3bf..d29d0b0d 100644
--- a/modules/imgfmt/HGOfdImpl.cpp
+++ b/modules/imgfmt/HGOfdImpl.cpp
@@ -287,7 +287,7 @@ HGResult HGOfdReaderImpl::GetPageInfo(HGUInt page, HGOfdPageInfo* info)
 	sprintf(img_name, "Doc_0/Res/%s", imgName.c_str());
 
 	HGJpegLoadInfo jpegInfo;
-	HGResult ret = ReadJpeg(img_name, &jpegInfo, 0, 0, 0, 0, NULL);
+	ret = ReadJpeg(img_name, &jpegInfo, 0, 0, 0, 0, NULL);
 	if (HGBASE_ERR_OK != ret)
 	{
 		return ret;
@@ -449,7 +449,7 @@ HGResult HGOfdReaderImpl::LoadImage(HGUInt page, HGFloat xScale, HGFloat yScale,
 
 	char img_name[128];
 	sprintf(img_name, "Doc_0/Res/%s", imgName.c_str());
-	HGResult ret = ReadJpeg(img_name, NULL, xScale, yScale, imgType, imgOrigin, image);
+	ret = ReadJpeg(img_name, NULL, xScale, yScale, imgType, imgOrigin, image);
 	if (HGBASE_ERR_OK != ret)
 	{
 		return ret;
@@ -850,8 +850,8 @@ HGResult HGOfdImageWriterImpl::AddJpegImageFile(HGImage image, const HGJpegSaveI
 		return HGIMGFMT_ERR_FAIL;
 	}
 
-	zip_int64_t ret = zip_file_add(m_zip, name, s, ZIP_FL_OVERWRITE);
-	if (ret < 0)
+	zip_int64_t rc = zip_file_add(m_zip, name, s, ZIP_FL_OVERWRITE);
+	if (rc < 0)
 	{
 		zip_source_free(s);
 		HGBase_DeleteFile(tmpName);