diff --git a/src/dorkbox/systemTray/nativeUI/_AwtTray.java b/src/dorkbox/systemTray/nativeUI/_AwtTray.java
index 582f2ed..ff7dabb 100644
--- a/src/dorkbox/systemTray/nativeUI/_AwtTray.java
+++ b/src/dorkbox/systemTray/nativeUI/_AwtTray.java
@@ -49,7 +49,7 @@ class _AwtTray extends Tray implements NativeUI {
     // is the system tray visible or not.
     private volatile boolean visible = true;
     private volatile File imageFile;
-    private volatile String tooltipText = null;
+    private volatile String tooltipText = "";
 
     private final Object keepAliveLock = new Object[0];
     private Thread keepAliveThread;
@@ -212,6 +212,9 @@ class _AwtTray extends Tray implements NativeUI {
     @Override
     protected
     void setTooltip_(final String tooltipText) {
+        if (this.tooltipText.equals(tooltipText)){
+            return;
+        }
         this.tooltipText = tooltipText;
 
         SwingUtil.invokeLater(new Runnable() {
diff --git a/src/dorkbox/systemTray/nativeUI/_GtkStatusIconNativeTray.java b/src/dorkbox/systemTray/nativeUI/_GtkStatusIconNativeTray.java
index 8b108ce..44c95eb 100644
--- a/src/dorkbox/systemTray/nativeUI/_GtkStatusIconNativeTray.java
+++ b/src/dorkbox/systemTray/nativeUI/_GtkStatusIconNativeTray.java
@@ -54,6 +54,7 @@ class _GtkStatusIconNativeTray extends Tray implements NativeUI {
     // is the system tray visible or not.
     private volatile boolean visible = true;
     private volatile File imageFile;
+    private volatile String tooltipText = "";
 
     private final GtkMenu gtkMenu;
 
@@ -205,6 +206,11 @@ class _GtkStatusIconNativeTray extends Tray implements NativeUI {
     @Override
     protected
     void setTooltip_(final String tooltipText) {
+        if (this.tooltipText.equals(tooltipText)){
+            return;
+        }
+        this.tooltipText = tooltipText;
+
         Gtk.dispatch(new Runnable() {
             @Override
             public
diff --git a/src/dorkbox/systemTray/swingUI/_SwingTray.java b/src/dorkbox/systemTray/swingUI/_SwingTray.java
index 56188b8..a9c4c38 100644
--- a/src/dorkbox/systemTray/swingUI/_SwingTray.java
+++ b/src/dorkbox/systemTray/swingUI/_SwingTray.java
@@ -49,7 +49,7 @@ class _SwingTray extends Tray implements SwingUI {
     // is the system tray visible or not.
     private volatile boolean visible = true;
     private volatile File imageFile;
-    private volatile String tooltipText = null;
+    private volatile String tooltipText = "";
 
     // Called in the EDT
     public
@@ -202,6 +202,9 @@ class _SwingTray extends Tray implements SwingUI {
     @Override
     protected
     void setTooltip_(final String tooltipText) {
+        if (this.tooltipText.equals(tooltipText)){
+            return;
+        }
         this.tooltipText = tooltipText;
 
         SwingUtil.invokeLater(new Runnable() {