diff --git a/src/plugins/cpptools/cpptoolsjsextension.cpp b/src/plugins/cpptools/cpptoolsjsextension.cpp
index 03a0d3df99d..fec48854657 100644
--- a/src/plugins/cpptools/cpptoolsjsextension.cpp
+++ b/src/plugins/cpptools/cpptoolsjsextension.cpp
@@ -121,7 +121,7 @@ QString CppToolsJsExtension::closeNamespaces(const QString &klass) const
 QString CppToolsJsExtension::includeStatement(
         const QString &fullyQualifiedClassName,
         const QString &suffix,
-        const QString &specialClasses,
+        const QStringList &specialClasses,
         const QString &pathOfIncludingFile
         )
 {
diff --git a/src/plugins/cpptools/cpptoolsjsextension.h b/src/plugins/cpptools/cpptoolsjsextension.h
index 065e0ca8d5e..b026465b0c4 100644
--- a/src/plugins/cpptools/cpptoolsjsextension.h
+++ b/src/plugins/cpptools/cpptoolsjsextension.h
@@ -60,7 +60,7 @@ public:
     Q_INVOKABLE QString includeStatement(
             const QString &fullyQualifiedClassName,
             const QString &suffix,
-            const QString &specialClasses,
+            const QStringList &specialClasses,
             const QString &pathOfIncludingFile
             );
 };