diff --git a/src/coreclr/vm/codeman.cpp b/src/coreclr/vm/codeman.cpp
index 78721292a3e9f5..153ca37d11b925 100644
--- a/src/coreclr/vm/codeman.cpp
+++ b/src/coreclr/vm/codeman.cpp
@@ -2412,6 +2412,11 @@ HeapList* EEJitManager::NewCodeHeap(CodeHeapRequestInfo *pInfo, DomainCodeHeapLi
 #endif
 
     size_t reserveSize = initialRequestSize;
+
+#if defined(TARGET_AMD64) || defined(TARGET_ARM64)
+    reserveSize += JUMP_ALLOCATE_SIZE;
+#endif
+
     if (reserveSize < minReserveSize)
         reserveSize = minReserveSize;
     reserveSize = ALIGN_UP(reserveSize, VIRTUAL_ALLOC_RESERVE_GRANULARITY);
diff --git a/src/coreclr/vm/dynamicmethod.cpp b/src/coreclr/vm/dynamicmethod.cpp
index 6b6c5ffacce4e7..6428256e81df76 100644
--- a/src/coreclr/vm/dynamicmethod.cpp
+++ b/src/coreclr/vm/dynamicmethod.cpp
@@ -398,6 +398,11 @@ HeapList* HostCodeHeap::InitializeHeapList(CodeHeapRequestInfo *pInfo)
 
     // Add TrackAllocation, HeapList and very conservative padding to make sure we have enough for the allocation
     ReserveBlockSize += sizeof(TrackAllocation) + HOST_CODEHEAP_SIZE_ALIGN + 0x100;
+
+#if defined(TARGET_AMD64) || defined(TARGET_ARM64)
+    ReserveBlockSize += JUMP_ALLOCATE_SIZE;
+#endif
+
     // reserve ReserveBlockSize rounded-up to VIRTUAL_ALLOC_RESERVE_GRANULARITY of memory
     ReserveBlockSize = ALIGN_UP(ReserveBlockSize, VIRTUAL_ALLOC_RESERVE_GRANULARITY);