diff --git a/llvm/lib/Transforms/Vectorize/VPlan.cpp b/llvm/lib/Transforms/Vectorize/VPlan.cpp
@@ -465,7 +465,8 @@ void VPlan::execute(VPTransformState *State) {
 
   // We do not attempt to preserve DT for outer loop vectorization currently.
   if (!EnableVPlanNativePath)
-    updateDominatorTree(State->DT, VectorPreHeaderBB, VectorLatchBB);
+    updateDominatorTree(State->DT, VectorPreHeaderBB, VectorLatchBB,
+                        L->getExitBlock());
 }
 
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
@@ -474,10 +475,10 @@ void VPlan::dump() const { dbgs() << *this << '\n'; }
 #endif
 
 void VPlan::updateDominatorTree(DominatorTree *DT, BasicBlock *LoopPreHeaderBB,
-                                BasicBlock *LoopLatchBB) {
+                                BasicBlock *LoopLatchBB,
+                                BasicBlock *LoopExitBB) {
   BasicBlock *LoopHeaderBB = LoopPreHeaderBB->getSingleSuccessor();
   assert(LoopHeaderBB && "Loop preheader does not have a single successor.");
-  DT->addNewBlock(LoopHeaderBB, LoopPreHeaderBB);
   // The vector body may be more than a single basic-block by this point.
   // Update the dominator tree information inside the vector body by propagating
   // it from header to latch, expecting only triangular control-flow, if any.
@@ -508,6 +509,9 @@ void VPlan::updateDominatorTree(DominatorTree *DT, BasicBlock *LoopPreHeaderBB,
     DT->addNewBlock(InterimSucc, BB);
     DT->addNewBlock(PostDomSucc, BB);
   }
+  // Latch block is a new dominator for the loop exit.
+  DT->changeImmediateDominator(LoopExitBB, LoopLatchBB);
+  assert(DT->verify(DominatorTree::VerificationLevel::Fast));
 }
 
 const Twine VPlanPrinter::getUID(const VPBlockBase *Block) {

diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -1424,9 +1424,9 @@ class VPlan {
 private:
   /// Add to the given dominator tree the header block and every new basic block
   /// that was created between it and the latch block, inclusive.
-  static void updateDominatorTree(DominatorTree *DT,
+  static void updateDominatorTree(DominatorTree *DT, BasicBlock *LoopLatchBB,
                                   BasicBlock *LoopPreHeaderBB,
-                                  BasicBlock *LoopLatchBB);
+                                  BasicBlock *LoopExitBB);
 };
 
 /// VPlanPrinter prints a given VPlan to a given output stream. The printing is