diff --git a/include/services/boss.hpp b/include/services/boss.hpp
index 4a5db7c5..ce0b9e0c 100644
--- a/include/services/boss.hpp
+++ b/include/services/boss.hpp
@@ -17,6 +17,7 @@ class BOSSService {
 	void receiveProperty(u32 messagePointer);
 	void registerStorageEntry(u32 messagePointer);
 	void unregisterStorage(u32 messagePointer);
+	void unregisterTask(u32 messagePointer);
 
 	s8 optoutFlag;
 public:
diff --git a/src/core/services/boss.cpp b/src/core/services/boss.cpp
index 992f4e2e..5c306cc6 100644
--- a/src/core/services/boss.cpp
+++ b/src/core/services/boss.cpp
@@ -5,6 +5,7 @@ namespace BOSSCommands {
 		InitializeSession = 0x00010082,
 		UnregisterStorage = 0x00030000,
 		GetOptoutFlag = 0x000A0000,
+		UnregisterTask = 0x000C0082,
 		GetTaskIdList = 0x000E0000,
 		ReceiveProperty = 0x00160082,
 		RegisterStorageEntry = 0x002F0140,
@@ -32,6 +33,7 @@ void BOSSService::handleSyncRequest(u32 messagePointer) {
 		case BOSSCommands::ReceiveProperty: receiveProperty(messagePointer); break;
 		case BOSSCommands::RegisterStorageEntry: registerStorageEntry(messagePointer); break;
 		case BOSSCommands::UnregisterStorage: unregisterStorage(messagePointer); break;
+		case BOSSCommands::UnregisterTask: unregisterTask(messagePointer); break;
 		default: Helpers::panic("BOSS service requested. Command: %08X\n", command);
 	}
 }
@@ -69,6 +71,11 @@ void BOSSService::receiveProperty(u32 messagePointer) {
 	mem.write32(messagePointer + 8, 0); // Read size
 }
 
+void BOSSService::unregisterTask(u32 messagePointer) {
+	log("BOSS::UnregisterTask (stubbed)\n");
+	mem.write32(messagePointer + 4, Result::Success);
+}
+
 void BOSSService::registerStorageEntry(u32 messagePointer) {
 	log("BOSS::RegisterStorageEntry (stubbed)\n");
 	mem.write32(messagePointer + 4, Result::Success);