diff --git a/src/OpenFOAM/containers/PtrLists/PtrList/PtrListI.H b/src/OpenFOAM/containers/PtrLists/PtrList/PtrListI.H
index e065c1f37fc5c831ba8f1dbbf4d4eba2be39a45f..37ef1caa575d150800abf9174de0e456b08947ab 100644
--- a/src/OpenFOAM/containers/PtrLists/PtrList/PtrListI.H
+++ b/src/OpenFOAM/containers/PtrLists/PtrList/PtrListI.H
@@ -121,21 +121,21 @@ inline void Foam::PtrList<T>::append(T* ptr)
 template<class T>
 inline void Foam::PtrList<T>::append(autoPtr<T>& aptr)
 {
-    return UPtrList<T>::append(aptr.release());
+    UPtrList<T>::append(aptr.release());
 }
 
 
 template<class T>
 inline void Foam::PtrList<T>::append(autoPtr<T>&& aptr)
 {
-    return UPtrList<T>::append(aptr.release());
+    UPtrList<T>::append(aptr.release());
 }
 
 
 template<class T>
 inline void Foam::PtrList<T>::append(const tmp<T>& tptr)
 {
-    return UPtrList<T>::append(tptr.ptr());
+    UPtrList<T>::append(tptr.ptr());
 }