diff --git a/vmm/src/memory_manager.rs b/vmm/src/memory_manager.rs
index 0b52ba1f3..250d484ce 100644
--- a/vmm/src/memory_manager.rs
+++ b/vmm/src/memory_manager.rs
@@ -451,12 +451,14 @@ impl MemoryManager {
         Ok(slot)
     }
 
-    pub fn resize(&mut self, desired_ram: u64) -> Result<(), Error> {
-        if desired_ram >= self.current_ram {
+    pub fn resize(&mut self, desired_ram: u64) -> Result<bool, Error> {
+        if desired_ram > self.current_ram {
             self.hotplug_ram_region((desired_ram - self.current_ram) as usize)?;
             self.current_ram = desired_ram;
+            Ok(true)
+        } else {
+            Ok(false)
         }
-        Ok(())
     }
 }
 
diff --git a/vmm/src/vm.rs b/vmm/src/vm.rs
index e6e37c40b..37efb8ae7 100755
--- a/vmm/src/vm.rs
+++ b/vmm/src/vm.rs
@@ -500,14 +500,17 @@ impl Vm {
         }
 
         if let Some(desired_memory) = desired_memory {
-            self.memory_manager
+            if self
+                .memory_manager
                 .lock()
                 .unwrap()
                 .resize(desired_memory)
-                .map_err(Error::MemoryManager)?;
-            self.devices
-                .notify_hotplug(HotPlugNotificationFlags::MEMORY_DEVICES_CHANGED)
-                .map_err(Error::DeviceManager)?;
+                .map_err(Error::MemoryManager)?
+            {
+                self.devices
+                    .notify_hotplug(HotPlugNotificationFlags::MEMORY_DEVICES_CHANGED)
+                    .map_err(Error::DeviceManager)?;
+            }
             self.config.lock().unwrap().memory.size = desired_memory;
         }
         Ok(())