diff --git a/onnxruntime/core/providers/cpu/cpu_execution_provider.cc b/onnxruntime/core/providers/cpu/cpu_execution_provider.cc
index f8e9d9b0cb..a700a151f8 100644
--- a/onnxruntime/core/providers/cpu/cpu_execution_provider.cc
+++ b/onnxruntime/core/providers/cpu/cpu_execution_provider.cc
@@ -260,6 +260,7 @@ class ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain,
 class ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 9, string, Where);
 class ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 9, float, Where);
 class ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 9, int32_t, Where);
+class ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 9, int64_t, Where);
 
 // Opset 10
 class ONNX_OPERATOR_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 10, StringNormalizer);
@@ -546,6 +547,7 @@ void RegisterOnnxOperatorKernels(KernelRegistry& kernel_registry) {
       BuildKernelCreateInfo<ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 9, string, Where)>,
       BuildKernelCreateInfo<ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 9, float, Where)>,
       BuildKernelCreateInfo<ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 9, int32_t, Where)>,
+      BuildKernelCreateInfo<ONNX_OPERATOR_TYPED_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 9, int64_t, Where)>,
 
       // Opset 10
       BuildKernelCreateInfo<ONNX_OPERATOR_KERNEL_CLASS_NAME(kCpuExecutionProvider, kOnnxDomain, 10, StringNormalizer)>,
diff --git a/onnxruntime/core/providers/cpu/tensor/where_op.cc b/onnxruntime/core/providers/cpu/tensor/where_op.cc
index 21e0243dcf..bd946c4619 100644
--- a/onnxruntime/core/providers/cpu/tensor/where_op.cc
+++ b/onnxruntime/core/providers/cpu/tensor/where_op.cc
@@ -29,7 +29,7 @@ namespace onnxruntime {
 //WHERE_TYPED_KERNEL(int8_t)
 //WHERE_TYPED_KERNEL(int16_t)
 WHERE_TYPED_KERNEL(int32_t)
-//WHERE_TYPED_KERNEL(int64_t)
+WHERE_TYPED_KERNEL(int64_t)
 //WHERE_TYPED_KERNEL(MLFloat16)
 //WHERE_TYPED_KERNEL(BFloat16)
 WHERE_TYPED_KERNEL(float)