diff --git a/src/corelib/io/qlockfile.cpp b/src/corelib/io/qlockfile.cpp
index 18a782a8f3e..c2565074308 100644
--- a/src/corelib/io/qlockfile.cpp
+++ b/src/corelib/io/qlockfile.cpp
@@ -287,7 +287,7 @@ bool QLockFilePrivate::getLockInfo(qint64 *pid, QString *hostname, QString *appn
     appNameLine.chop(1);
     QByteArray hostNameLine = reader.readLine();
     hostNameLine.chop(1);
-    if (pidLine.isEmpty() || appNameLine.isEmpty())
+    if (pidLine.isEmpty())
         return false;
 
     qint64 thePid = pidLine.toLongLong();
diff --git a/src/corelib/io/qlockfile_unix.cpp b/src/corelib/io/qlockfile_unix.cpp
index 2fe93f0af65..3ed973494bf 100644
--- a/src/corelib/io/qlockfile_unix.cpp
+++ b/src/corelib/io/qlockfile_unix.cpp
@@ -183,7 +183,7 @@ bool QLockFilePrivate::isApparentlyStale() const
     QString hostname, appname;
     if (!getLockInfo(&pid, &hostname, &appname))
         return false;
-    if (hostname == QString::fromLocal8Bit(localHostName())) {
+    if (hostname.isEmpty() || hostname == QString::fromLocal8Bit(localHostName())) {
         if (::kill(pid, 0) == -1 && errno == ESRCH)
             return true; // PID doesn't exist anymore
     }