diff --git a/compiler/src/iree/compiler/Codegen/Dialect/VectorExt/IR/VectorExtAttrs.cpp b/compiler/src/iree/compiler/Codegen/Dialect/VectorExt/IR/VectorExtAttrs.cpp
index 8335cd65ac5c..dfd465177026 100644
--- a/compiler/src/iree/compiler/Codegen/Dialect/VectorExt/IR/VectorExtAttrs.cpp
+++ b/compiler/src/iree/compiler/Codegen/Dialect/VectorExt/IR/VectorExtAttrs.cpp
@@ -218,7 +218,7 @@ uint64_t LayoutAttr::getShuffleOffset(int64_t reductionDim) {
              getShape(LayoutDimension::LANEY).value_or(0);
     break;
   default:
-    assert("Invalid dimension! Expected lane dimension.");
+    assert(false && "Invalid dimension! Expected lane dimension");
     break;
   }
   return offset;