diff --git a/src/gui/widget/stringinput.cpp b/src/gui/widget/stringinput.cpp
index 78733568a..114a26cd4 100644
--- a/src/gui/widget/stringinput.cpp
+++ b/src/gui/widget/stringinput.cpp
@@ -453,7 +453,7 @@ int CStringInput::exec( CMenuTarget* parent, const std::string & )
         {
                 observ->changeNotify(name, value);
         }
-	delete[] oldval;
+	delete[] dispval;
 	delete[] oldval;
 	return res;
 }
diff --git a/src/gui/widget/stringinput_ext.cpp b/src/gui/widget/stringinput_ext.cpp
index 9ef5d47d4..2af155431 100644
--- a/src/gui/widget/stringinput_ext.cpp
+++ b/src/gui/widget/stringinput_ext.cpp
@@ -276,7 +276,7 @@ int CExtendedInput::exec( CMenuTarget* parent, const std::string & )
 		observ->changeNotify(name, value);
 	}
 
-	delete[] oldval;
+	delete[] dispval;
 	delete[] oldval;
 
 	return res;