diff --git a/include/rapidjson/schema.h b/include/rapidjson/schema.h
index 4fdb854..f7a5237 100644
--- a/include/rapidjson/schema.h
+++ b/include/rapidjson/schema.h
@@ -159,7 +159,6 @@ public:
     virtual uint64_t GetHashCode(void* hasher) = 0;
     virtual void DestroryHasher(void* hasher) = 0;
     virtual void* MallocState(size_t size) = 0;
-    virtual void* ReallocState(void* originalPtr, size_t originalSize, size_t newSize) = 0;
     virtual void FreeState(void* p) = 0;
 };
 
@@ -1776,10 +1775,6 @@ RAPIDJSON_MULTILINEMACRO_END
         return GetStateAllocator().Malloc(size);
     }
 
-    virtual void* ReallocState(void* originalPtr, size_t originalSize, size_t newSize) {
-        return GetStateAllocator().Realloc(originalPtr, originalSize, newSize);
-    }
-
     virtual void FreeState(void* p) {
         return StateAllocator::Free(p);
     }