diff --git a/vmm/src/memory_manager.rs b/vmm/src/memory_manager.rs
index 18e0b86b6..bebcc8fa4 100644
--- a/vmm/src/memory_manager.rs
+++ b/vmm/src/memory_manager.rs
@@ -2563,6 +2563,8 @@ impl MemoryManager {
             userspace_addr_ = userspace_addr as u64
         );
 
+        self.memory_slot_allocator().free_memory_slot(slot);
+
         Ok(())
     }