diff --git a/ipc/glue/SharedMemory.cpp b/ipc/glue/SharedMemory.cpp
index d0c637d177753..f3c55928953b1 100644
--- a/ipc/glue/SharedMemory.cpp
+++ b/ipc/glue/SharedMemory.cpp
@@ -48,6 +48,7 @@ SharedMemory::SharedMemory()
   : mAllocSize(0)
   , mMappedSize(0)
 {
+  MOZ_COUNT_CTOR(SharedMemory);
   static Atomic<bool> registered;
   if (registered.compareExchange(false, true)) {
     RegisterStrongMemoryReporter(new ShmemReporter());
diff --git a/ipc/glue/SharedMemory.h b/ipc/glue/SharedMemory.h
index 26ff18744c8a0..0ab0337dac14b 100644
--- a/ipc/glue/SharedMemory.h
+++ b/ipc/glue/SharedMemory.h
@@ -30,14 +30,19 @@ namespace ipc {
 class SharedMemory
 {
 public:
+  virtual ~SharedMemory()
+  {
+    MOZ_COUNT_DTOR(SharedMemory);
+    Unmapped();
+    Destroyed();
+  }
+
   enum SharedMemoryType {
     TYPE_BASIC,
     TYPE_SYSV,
     TYPE_UNKNOWN
   };
 
-  virtual ~SharedMemory() { Unmapped(); Destroyed(); }
-
   size_t Size() const { return mMappedSize; }
 
   virtual void* memory() const = 0;