diff --git a/content/media/fmp4/apple/AppleCMLinker.cpp b/content/media/fmp4/apple/AppleCMLinker.cpp
index 6a84e9ef855f..bde9819d6509 100644
--- a/content/media/fmp4/apple/AppleCMLinker.cpp
+++ b/content/media/fmp4/apple/AppleCMLinker.cpp
@@ -73,7 +73,7 @@ fail:
 AppleCMLinker::Unlink()
 {
   MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(sLink && sRefCount > 0, "Unbalanced Unlink()");
+  MOZ_ASSERT(sRefCount > 0, "Unbalanced Unlink()");
   --sRefCount;
   if (sLink && sRefCount < 1) {
     LOG("Unlinking CoreMedia framework.");
diff --git a/content/media/fmp4/apple/AppleVTLinker.cpp b/content/media/fmp4/apple/AppleVTLinker.cpp
index 01c6e82949b1..74cd1ae6d8c9 100644
--- a/content/media/fmp4/apple/AppleVTLinker.cpp
+++ b/content/media/fmp4/apple/AppleVTLinker.cpp
@@ -77,7 +77,7 @@ AppleVTLinker::Unlink()
   // reference count to avoidunloading our symbols when other
   // instances still need them.
   MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(sLink && sRefCount > 0, "Unbalanced Unlink()");
+  MOZ_ASSERT(sRefCount > 0, "Unbalanced Unlink()");
   --sRefCount;
   if (sLink && sRefCount < 1) {
     LOG("Unlinking VideoToolbox framework.");