diff --git a/src/portcontrol.cpp b/src/portcontrol.cpp
--- a/src/portcontrol.cpp
+++ b/src/portcontrol.cpp
@@ -46,6 +46,7 @@ PortControl::PortControl(QSerialPort* po
     QObject::connect(&openAction, &QAction::triggered,
                      this, &PortControl::openActionTriggered);
 
+    loadPortListAction.setToolTip("Reload port list");
     QObject::connect(&loadPortListAction, &QAction::triggered,
                      [this](bool checked){loadPortList();});
 
diff --git a/src/portcontrol.ui b/src/portcontrol.ui
--- a/src/portcontrol.ui
+++ b/src/portcontrol.ui
@@ -70,7 +70,7 @@
           </size>
          </property>
          <property name="toolTip">
-          <string>Reload port list</string>
+          <string/>
          </property>
          <property name="text">
           <string>↺</string>