diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73898d62..0a4a6f79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 FlatLaf Change Log
 ==================
 
+## 3.2.4
+
+#### Fixed bugs
+
+- Popup: Fixed potential NPE in (unusual) case that the popup invoker is `null`
+  (only on Linux with Wayland and Java 21; regression in 3.2.3). (issue #752)
+
+
 ## 3.2.3
 
 #### Fixed bugs
diff --git a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupFactory.java b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupFactory.java
index 80c24812..013d86b7 100644
--- a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupFactory.java
+++ b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupFactory.java
@@ -438,7 +438,7 @@ public class FlatPopupFactory
 	 */
 	private static void fixLinuxWaylandJava21focusIssue( Component owner ) {
 		// only necessary on Linux when running in Java 21+
-		if( !SystemInfo.isLinux || SystemInfo.javaVersion < SystemInfo.toVersion( 21, 0, 0, 0 ) )
+		if( owner == null || !SystemInfo.isLinux || SystemInfo.javaVersion < SystemInfo.toVersion( 21, 0, 0, 0 ) )
 			return;
 
 		// get window