diff --git a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
index 382521d090f4e..0cf99d8245714 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
@@ -241,7 +241,7 @@ static bool sinkScalarOperands(VPlan &Plan) {
 
 /// If \p R is a region with a VPBranchOnMaskRecipe in the entry block, return
 /// the mask.
-VPValue *getPredicatedMask(VPRegionBlock *R) {
+static VPValue *getPredicatedMask(VPRegionBlock *R) {
   auto *EntryBB = dyn_cast<VPBasicBlock>(R->getEntry());
   if (!EntryBB || EntryBB->size() != 1 ||
       !isa<VPBranchOnMaskRecipe>(EntryBB->begin()))