diff --git a/ReactCommon/utils/ManagedObjectWrapper.h b/ReactCommon/utils/ManagedObjectWrapper.h
index 005638d087..6231580157 100644
--- a/ReactCommon/utils/ManagedObjectWrapper.h
+++ b/ReactCommon/utils/ManagedObjectWrapper.h
@@ -27,18 +27,7 @@ namespace detail {
  * A custom deleter used for the deallocation of Objective-C managed objects.
  * To be used only by `wrapManagedObject`.
  */
-static void wrappedManagedObjectDeleter(void *cfPointer) noexcept
-{
-  // A shared pointer does call custom deleter on `nullptr`s.
-  // This is somewhat counter-intuitively but makes sense considering the type-erasured nature of shared pointer and an
-  // aliasing constructor feature. `CFRelease` crashes on null pointer though. Therefore we must check for this case
-  // explicitly.
-  if (cfPointer == NULL) {
-    return;
-  }
-
-  CFRelease(cfPointer);
-}
+void wrappedManagedObjectDeleter(void *cfPointer) noexcept;
 
 }
 
diff --git a/ReactCommon/utils/ManagedObjectWrapper.mm b/ReactCommon/utils/ManagedObjectWrapper.mm
index 1a6822eca6..ede1d30aad 100644
--- a/ReactCommon/utils/ManagedObjectWrapper.mm
+++ b/ReactCommon/utils/ManagedObjectWrapper.mm
@@ -10,6 +10,27 @@
 #if defined(__OBJC__) && defined(__cplusplus)
 #if TARGET_OS_MAC && TARGET_OS_IPHONE
 
+namespace facebook {
+namespace react {
+namespace detail {
+
+void wrappedManagedObjectDeleter(void *cfPointer) noexcept
+{
+  // A shared pointer does call custom deleter on `nullptr`s.
+  // This is somewhat counter-intuitively but makes sense considering the type-erasured nature of shared pointer and an
+  // aliasing constructor feature. `CFRelease` crashes on null pointer though. Therefore we must check for this case
+  // explicitly.
+  if (cfPointer == NULL) {
+    return;
+  }
+
+  CFRelease(cfPointer);
+}
+
+} // namespace detail
+} // namespace react
+} // namespace facebook
+
 @implementation RCTInternalGenericWeakWrapper
 @end