diff --git a/src/test/java/com/fren_gor/packetInjectorAPI/tests/PacketEventManagerTest.java b/src/test/java/com/fren_gor/packetInjectorAPI/tests/PacketEventManagerTest.java
index 65ce14d..7f2d004 100644
--- a/src/test/java/com/fren_gor/packetInjectorAPI/tests/PacketEventManagerTest.java
+++ b/src/test/java/com/fren_gor/packetInjectorAPI/tests/PacketEventManagerTest.java
@@ -173,6 +173,14 @@ void testPluginDisableEvent() {
 		assertFalse(MAP_LISTENERS.containsKey(p), "Plugin hasn't been unregistered by disable event");
 	}
 
+	@Test
+	@DisplayName("Unregister not-registered plugin Test")
+	void testUnregisteredPluginUnregisterEvent() {
+		Plugin p = new DummyPlugin();
+		assertDoesNotThrow(() -> PacketEventManager.unregisterPacketListener(p),
+				"PacketEventManager#unregisterPacketListener(Plugin) throws exceptions when not-registered plugin got unregistered");
+	}
+
 	@Test
 	@DisplayName("Unregister All Test")
 	void testUnrgisterAll() {
diff --git a/src/test/java/com/fren_gor/packetInjectorAPI/tests/dummyClasses/DummyPlugin.java b/src/test/java/com/fren_gor/packetInjectorAPI/tests/dummyClasses/DummyPlugin.java
index cedac66..cb6c862 100644
--- a/src/test/java/com/fren_gor/packetInjectorAPI/tests/dummyClasses/DummyPlugin.java
+++ b/src/test/java/com/fren_gor/packetInjectorAPI/tests/dummyClasses/DummyPlugin.java
@@ -95,7 +95,7 @@ public Server getServer() {
 
 	@Override
 	public boolean isEnabled() {
-		return false;
+		return true;
 	}
 
 	@Override