diff --git a/dlls/ole32/compobj.c b/dlls/ole32/compobj.c
index c04b6b85c3..1882debe51 100644
--- a/dlls/ole32/compobj.c
+++ b/dlls/ole32/compobj.c
@@ -152,12 +152,13 @@ void COMPOBJ_InitProcess( void )
 {
     WNDCLASSA wclass;
 
-    /* Inter-thread RPCs are done through window messages rather than pipes. When
-       an interface is marshalled into another apartment in the same process,
-       a window of the following class is created. The *caller* of CoMarshalInterface
-       (ie the application) is responsible for pumping the message loop in that thread,
-       the WM_USER messages which point to the RPCs are then dispatched to COM_AptWndProc
-       by the users code.
+    /* Dispatching to the correct thread in an apartment is done through
+     * window messages rather than RPC transports. When an interface is
+     * marshalled into another apartment in the same process, a window of the
+     * following class is created. The *caller* of CoMarshalInterface (ie the
+     * application) is responsible for pumping the message loop in that thread.
+     * The WM_USER messages which point to the RPCs are then dispatched to
+     * COM_AptWndProc by the user's code.
      */
     memset(&wclass, 0, sizeof(wclass));
     wclass.lpfnWndProc = &COM_AptWndProc;