diff --git a/src/corelib/io/qfilesystemwatcher_win.cpp b/src/corelib/io/qfilesystemwatcher_win.cpp
index 29dd78030b..31c6b747a7 100644
--- a/src/corelib/io/qfilesystemwatcher_win.cpp
+++ b/src/corelib/io/qfilesystemwatcher_win.cpp
@@ -596,7 +596,7 @@ QStringList QWindowsFileSystemWatcherEngine::removePaths(const QStringList &path
         }
     }
 
-    threads.removeAll(0);
+    threads.removeAll(nullptr);
     return unhandled;
 }