diff --git a/src/xml/dom/qdom.cpp b/src/xml/dom/qdom.cpp
index b54590a2f8..3c41ed48a3 100644
--- a/src/xml/dom/qdom.cpp
+++ b/src/xml/dom/qdom.cpp
@@ -6132,9 +6132,9 @@ bool QDomDocument::setContent(QIODevice* dev, bool namespaceProcessing, QString
 #if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     if (!dev->isOpen()) {
         qWarning("QDomDocument called with unopened QIODevice. "
-                 "This will not be supported in future Qt versions");
+                 "This will not be supported in future Qt versions.");
         if (!dev->open(QIODevice::ReadOnly)) {
-            qWarning("QDomDocument::setContent: Failed to open device");
+            qWarning("QDomDocument::setContent: Failed to open device.");
             return false;
         }
     }
diff --git a/tests/auto/xml/dom/qdom/tst_qdom.cpp b/tests/auto/xml/dom/qdom/tst_qdom.cpp
index 0736e158fc..de35861419 100644
--- a/tests/auto/xml/dom/qdom/tst_qdom.cpp
+++ b/tests/auto/xml/dom/qdom/tst_qdom.cpp
@@ -1942,7 +1942,7 @@ void tst_QDom::setContentUnopenedQIODevice() const
 
     QTest::ignoreMessage(QtWarningMsg,
                          "QDomDocument called with unopened QIODevice. "
-                         "This will not be supported in future Qt versions");
+                         "This will not be supported in future Qt versions.");
 
     // Note: the check below is expected to fail in Qt 7.
     // Fix the test and remove the obsolete code from setContent().