diff --git a/llvm/lib/Target/DirectX/DXILPostOptimizationValidation.cpp b/llvm/lib/Target/DirectX/DXILPostOptimizationValidation.cpp
index fc0afb9a0efdf..9b41e28ab3e19 100644
--- a/llvm/lib/Target/DirectX/DXILPostOptimizationValidation.cpp
+++ b/llvm/lib/Target/DirectX/DXILPostOptimizationValidation.cpp
@@ -95,7 +95,7 @@ static void reportOverlappingError(Module &M, ResourceInfo R1,
 }
 
 static void reportOverlappingBinding(Module &M, DXILResourceMap &DRM) {
-  bool ErrorFound = false;
+  [[maybe_unused]] bool ErrorFound = false;
   for (const auto &ResList :
        {DRM.srvs(), DRM.uavs(), DRM.cbuffers(), DRM.samplers()}) {
     if (ResList.empty())