diff --git a/hcore/deviceManager/deviceSpecParser.cpp b/hcore/deviceManager/deviceSpecParser.cpp
index 0470a4f..90f5d95 100644
--- a/hcore/deviceManager/deviceSpecParser.cpp
+++ b/hcore/deviceManager/deviceSpecParser.cpp
@@ -21,7 +21,7 @@ std::string DeviceManager::readDeviceFile(const std::string& filename)
         (std::istreambuf_iterator<char>(file)),
         std::istreambuf_iterator<char>());
 
-    return content;
+    return std::move(content);
 }
 
 void DeviceManager::collateAllDeviceSpecs(const OptionParser& options)