diff --git a/src/libs/extensionsystem/invoker.cpp b/src/libs/extensionsystem/invoker.cpp
index 150dabdaa8c..a881bafa9d5 100644
--- a/src/libs/extensionsystem/invoker.cpp
+++ b/src/libs/extensionsystem/invoker.cpp
@@ -38,28 +38,28 @@ namespace ExtensionSystem {
 */
 
 /*!
-    \fn Result invoke(QObject *target, const char *slot)
+    \fn template <class Result> Result ExtensionSystem::invoke(QObject *target, const char *slot)
     Invokes \a slot on \a target by name via Qt's meta method system.
 
     Returns the result of the meta call.
 */
 
 /*!
-    \fn Result invoke(QObject *target, const char *slot, const T0 &t0)
+    \fn template <class Result, class T0> Result ExtensionSystem::invoke(QObject *target, const char *slot, const T0 &t0)
     Invokes \a slot on \a target with argument \a t0 by name via Qt's meta method system.
 
     Returns the result of the meta call.
 */
 
 /*!
-    \fn Result invoke(QObject *target, const char *slot, const T0 &t0, const T1 &t1)
+    \fn template <class Result, class T0, class T1> Result ExtensionSystem::invoke(QObject *target, const char *slot, const T0 &t0, const T1 &t1)
     Invokes \a slot on \a target with arguments \a t0 and \a t1 by name via Qt's meta method system.
 
     Returns the result of the meta call.
 */
 
 /*!
-    \fn Result invoke(QObject *target, const char *slot, const T0 &t0, const T1 &t1, const T2 &t2)
+    \fn template <class Result, class T0, class T1, class T2> Result ExtensionSystem::invoke(QObject *target, const char *slot, const T0 &t0, const T1 &t1, const T2 &t2)
     Invokes \a slot on \a target with arguments \a t0, \a t1 and \a t2 by name
     via Qt's meta method system.