diff --git a/src/plugins/qtsupport/baseqtversion.cpp b/src/plugins/qtsupport/baseqtversion.cpp
index 603a19aff5f..13bab8c6f9c 100644
--- a/src/plugins/qtsupport/baseqtversion.cpp
+++ b/src/plugins/qtsupport/baseqtversion.cpp
@@ -1228,17 +1228,17 @@ void BaseQtVersionPrivate::updateVersionInfo()
         }
     }
     const QString qtInstallDocs = q->docsPath().toString();
-    if (!qtInstallDocs.isNull()) {
+    if (!qtInstallDocs.isEmpty()) {
         if (QFileInfo::exists(qtInstallDocs))
             m_hasDocumentation = true;
     }
     const QString qtInstallExamples = q->examplesPath().toString();
-    if (!qtInstallExamples.isNull()) {
+    if (!qtInstallExamples.isEmpty()) {
         if (QFileInfo::exists(qtInstallExamples))
             m_hasExamples = true;
     }
     const QString qtInstallDemos = q->demosPath().toString();
-    if (!qtInstallDemos.isNull()) {
+    if (!qtInstallDemos.isEmpty()) {
         if (QFileInfo::exists(qtInstallDemos))
             m_hasDemos = true;
     }