diff --git a/src/plugins/projectexplorer/projectconfiguration.cpp b/src/plugins/projectexplorer/projectconfiguration.cpp
index 3ab01fba2f6..5e49e97ade0 100644
--- a/src/plugins/projectexplorer/projectconfiguration.cpp
+++ b/src/plugins/projectexplorer/projectconfiguration.cpp
@@ -128,11 +128,6 @@ Core::Id ProjectExplorer::idFromMap(const QVariantMap &map)
     return Core::Id::fromSetting(map.value(QLatin1String(CONFIGURATION_ID_KEY)));
 }
 
-QString ProjectExplorer::displayNameFromMap(const QVariantMap &map)
-{
-    return map.value(QLatin1String(DISPLAY_NAME_KEY), QString()).toString();
-}
-
 bool StatefulProjectConfiguration::isEnabled() const
 {
     return m_isEnabled;
diff --git a/src/plugins/projectexplorer/projectconfiguration.h b/src/plugins/projectexplorer/projectconfiguration.h
index ec23948571b..40ed0a54370 100644
--- a/src/plugins/projectexplorer/projectconfiguration.h
+++ b/src/plugins/projectexplorer/projectconfiguration.h
@@ -112,8 +112,7 @@ private:
     bool m_isEnabled = false;
 };
 
-// helper functions:
+// helper function:
 PROJECTEXPLORER_EXPORT Core::Id idFromMap(const QVariantMap &map);
-PROJECTEXPLORER_EXPORT QString displayNameFromMap(const QVariantMap &map);
 
 } // namespace ProjectExplorer