diff --git a/src/appdata/plugin/app-letter-sort-plugin.cpp b/src/appdata/plugin/app-letter-sort-plugin.cpp
index ccc8c36..ad0f739 100644
--- a/src/appdata/plugin/app-letter-sort-plugin.cpp
+++ b/src/appdata/plugin/app-letter-sort-plugin.cpp
@@ -154,7 +154,7 @@ void AppLetterSortPlugin::sortAppData(QList<DataEntity> &apps)
 void AppLetterSortPlugin::addAppToLabel(const QString &labelName, QVector<DataEntity> &apps)
 {
     LabelItem labelItem;
-    labelItem.setDisable(!apps.isEmpty());
+    labelItem.setDisable(apps.isEmpty());
     labelItem.setIndex(m_labels.size());
     labelItem.setId(labelName);
     labelItem.setDisplayName(labelName);