diff --git a/src/coreclr/vm/loaderallocator.cpp b/src/coreclr/vm/loaderallocator.cpp
index cbfda127700074..b234ede563d15c 100644
--- a/src/coreclr/vm/loaderallocator.cpp
+++ b/src/coreclr/vm/loaderallocator.cpp
@@ -382,8 +382,9 @@ LoaderAllocator * LoaderAllocator::GCLoaderAllocators_RemoveAssemblies(AppDomain
 #endif //0
 
     AppDomain::AssemblyIterator i;
-    // Iterate through every loader allocator, marking as we go
     {
+        // Iterate through every loader allocator, marking as we go
+        CrstHolder chLoaderAllocatorReferencesLock(pAppDomain->GetLoaderAllocatorReferencesLock());
         CrstHolder chAssemblyListLock(pAppDomain->GetAssemblyListLock());
 
         i = pAppDomain->IterateAssembliesEx((AssemblyIterationFlags)(
@@ -405,17 +406,11 @@ LoaderAllocator * LoaderAllocator::GCLoaderAllocators_RemoveAssemblies(AppDomain
                 }
             }
         }
-    }
-
-    // Iterate through every loader allocator, unmarking marked loaderallocators, and
-    // build a free list of unmarked ones
-    {
-        CrstHolder chLoaderAllocatorReferencesLock(pAppDomain->GetLoaderAllocatorReferencesLock());
-        CrstHolder chAssemblyListLock(pAppDomain->GetAssemblyListLock());
 
+        // Iterate through every loader allocator, unmarking marked loaderallocators, and
+        // build a free list of unmarked ones
         i = pAppDomain->IterateAssembliesEx((AssemblyIterationFlags)(
             kIncludeExecution | kIncludeLoaded | kIncludeCollected));
-        CollectibleAssemblyHolder<DomainAssembly *> pDomainAssembly;
 
         while (i.Next_Unlocked(pDomainAssembly.This()))
         {