diff --git a/tensorflow/lite/kernels/comparisons.cc b/tensorflow/lite/kernels/comparisons.cc
index e49348a5462..15a4a983c1e 100644
--- a/tensorflow/lite/kernels/comparisons.cc
+++ b/tensorflow/lite/kernels/comparisons.cc
@@ -37,9 +37,8 @@ TfLiteStatus ComparisonPrepare(TfLiteContext* context, TfLiteNode* node) {
   const TfLiteTensor* input2 = GetInput(context, node, kInputTensor2);
   TfLiteTensor* output = GetOutput(context, node, kOutputTensor);
 
-  // Don't support string and bool.
-  TF_LITE_ENSURE(context,
-                 input1->type != kTfLiteString || input1->type != kTfLiteBool);
+  // Don't support string.
+  TF_LITE_ENSURE(context, input1->type != kTfLiteString);
   // Currently only support tensors have the same type.
   TF_LITE_ENSURE_TYPES_EQ(context, input1->type, input2->type);
   output->type = kTfLiteBool;