diff --git a/toonz/sources/toonzlib/txshsimplelevel.cpp b/toonz/sources/toonzlib/txshsimplelevel.cpp
index 7a11b21..9d153a3 100644
--- a/toonz/sources/toonzlib/txshsimplelevel.cpp
+++ b/toonz/sources/toonzlib/txshsimplelevel.cpp
@@ -1175,7 +1175,6 @@ void TXshSimpleLevel::load() {
         imageRes.ly = imageInfo->m_ly;
         imageDpi.x  = imageInfo->m_dpix;
         imageDpi.y  = imageInfo->m_dpiy;
-		std::string un = Preferences::instance()->getUnits().toStdString();
         m_properties->setImageDpi(imageDpi);
         m_properties->setImageRes(imageRes);
         m_properties->setBpp(imageInfo->m_bitsPerSample *