diff --git a/include/kernel/kernel.hpp b/include/kernel/kernel.hpp
index 217dd148..d35d9031 100644
--- a/include/kernel/kernel.hpp
+++ b/include/kernel/kernel.hpp
@@ -137,6 +137,7 @@ public:
 	void duplicateHandle();
 	void exitThread();
 	void mapMemoryBlock();
+	void unmapMemoryBlock();
 	void queryMemory();
 	void getCurrentProcessorNumber();
 	void getProcessID();
diff --git a/src/core/kernel/kernel.cpp b/src/core/kernel/kernel.cpp
index 2e4fffff..392b87fd 100644
--- a/src/core/kernel/kernel.cpp
+++ b/src/core/kernel/kernel.cpp
@@ -50,6 +50,7 @@ void Kernel::serviceSVC(u32 svc) {
 		case 0x1D: svcClearTimer(); break;
 		case 0x1E: createMemoryBlock(); break;
 		case 0x1F: mapMemoryBlock(); break;
+		case 0x20: unmapMemoryBlock(); break;
 		case 0x21: createAddressArbiter(); break;
 		case 0x22: arbitrateAddress(); break;
 		case 0x23: svcCloseHandle(); break;
diff --git a/src/core/kernel/memory_management.cpp b/src/core/kernel/memory_management.cpp
index 7acc749b..0d234be5 100644
--- a/src/core/kernel/memory_management.cpp
+++ b/src/core/kernel/memory_management.cpp
@@ -207,3 +207,12 @@ void Kernel::createMemoryBlock() {
 	regs[0] = Result::Success;
 	regs[1] = makeMemoryBlock(addr, size, myPermission, otherPermission);
 }
+
+void Kernel::unmapMemoryBlock() {
+	Handle block = regs[0];
+	u32 addr = regs[1];
+	logSVC("Unmap memory block (block handle = %X, addr = %08X)\n", block, addr);
+
+	Helpers::warn("Stubbed svcUnmapMemoryBlock!");
+	regs[0] = Result::Success;
+}