diff --git a/sources/qetapp.cpp b/sources/qetapp.cpp
index 45115ccd3..0485335be 100644
--- a/sources/qetapp.cpp
+++ b/sources/qetapp.cpp
@@ -320,7 +320,8 @@ QStringList QETApp::elementInfoKeys()
 			  << "auxiliary2"
 			  << "machine-manufacturer-reference"
 			  << "location"
-			  << "function";
+			  << "function"
+			  << "tension-protocol";
 	return info_list;
 }