diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 1aeecebf1..90759c6cd 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -177,7 +177,7 @@ bool MemoryManager::TryWriteBacking(void* address, const void* data, u64 size) {
 }
 
 PAddr MemoryManager::PoolExpand(PAddr search_start, PAddr search_end, u64 size, u64 alignment) {
-    std::scoped_lock lk{mutex};
+    std::scoped_lock lk{mutex, unmap_mutex};
     alignment = alignment > 0 ? alignment : 64_KB;
 
     auto dmem_area = FindDmemArea(search_start);
@@ -219,7 +219,7 @@ PAddr MemoryManager::PoolExpand(PAddr search_start, PAddr search_end, u64 size,
 
 PAddr MemoryManager::Allocate(PAddr search_start, PAddr search_end, u64 size, u64 alignment,
                               s32 memory_type) {
-    std::scoped_lock lk{mutex};
+    std::scoped_lock lk{mutex, unmap_mutex};
     alignment = alignment > 0 ? alignment : 16_KB;
 
     auto dmem_area = FindDmemArea(search_start);