diff --git a/mlir/lib/Dialect/Vector/VectorTransforms.cpp b/mlir/lib/Dialect/Vector/VectorTransforms.cpp
index 3d8353d0a9adca..40fb659d020e71 100644
--- a/mlir/lib/Dialect/Vector/VectorTransforms.cpp
+++ b/mlir/lib/Dialect/Vector/VectorTransforms.cpp
@@ -3750,7 +3750,7 @@ struct TwoDimMultiReductionToReduction
       case vector::CombiningKind::XOR:
         return "xor";
       default:
-        llvm_unreachable("unknwon combining kind");
+        llvm_unreachable("unknown combining kind");
       }
     };