diff --git a/mlir/lib/IR/MLIRContext.cpp b/mlir/lib/IR/MLIRContext.cpp
--- a/mlir/lib/IR/MLIRContext.cpp
+++ b/mlir/lib/IR/MLIRContext.cpp
@@ -175,11 +175,6 @@
   /// destruction with the context.
   std::unique_ptr<llvm::ThreadPool> ownedThreadPool;
 
-  /// This is a list of dialects that are created referring to this context.
-  /// The MLIRContext owns the objects.
-  DenseMap<StringRef, std::unique_ptr<Dialect>> loadedDialects;
-  DialectRegistry dialectsRegistry;
-
   /// An allocator used for AbstractAttribute and AbstractType objects.
   llvm::BumpPtrAllocator abstractDialectSymbolAllocator;
 
@@ -193,6 +188,12 @@
   /// and efficient `getRegisteredOperations` implementation.
   SmallVector<RegisteredOperationName, 0> sortedRegisteredOperations;
 
+  /// This is a list of dialects that are created referring to this context.
+  /// The MLIRContext owns the objects. These need to be declared after the
+  /// registered operations to ensure correct destruction order.
+  DenseMap<StringRef, std::unique_ptr<Dialect>> loadedDialects;
+  DialectRegistry dialectsRegistry;
+
   /// A mutex used when accessing operation information.
   llvm::sys::SmartRWMutex<true> operationInfoMutex;