diff --git a/lib/SPIRV/OCLTypeToSPIRV.h b/lib/SPIRV/OCLTypeToSPIRV.h
index 2ee77a954d..23fd5c64dc 100644
--- a/lib/SPIRV/OCLTypeToSPIRV.h
+++ b/lib/SPIRV/OCLTypeToSPIRV.h
@@ -68,7 +68,7 @@ class OCLTypeToSPIRVBase : protected BuiltinCallHelper {
   llvm::Module *M;
   llvm::LLVMContext *Ctx;
   // Map of argument/Function -> adapted type (probably TypedPointerType)
-  std::unordered_map<llvm::Value *, llvm::Type *> AdaptedTy;
+  std::map<llvm::Value *, llvm::Type *> AdaptedTy;
   std::set<llvm::Function *> WorkSet; // Functions to be adapted
 
   void adaptFunctionArguments(llvm::Function *F);