diff --git a/src/core/kconfig.h b/src/core/kconfig.h
--- a/src/core/kconfig.h
+++ b/src/core/kconfig.h
@@ -271,6 +271,11 @@
      */
     void addConfigSources(const QStringList &sources);
 
+    /**
+     * Returns a list of the additional configuration sources used in this object
+     */
+    QStringList additionalConfigSources() const;
+
     /// @}
     /// @{ locales
     /**
diff --git a/src/core/kconfig.cpp b/src/core/kconfig.cpp
--- a/src/core/kconfig.cpp
+++ b/src/core/kconfig.cpp
@@ -780,6 +780,12 @@
     }
 }
 
+QStringList KConfig::additionalConfigSources() const
+{
+    Q_D(const KConfig);
+    return d->extraFiles.toList();
+}
+
 QString KConfig::locale() const
 {
     Q_D(const KConfig);