diff --git a/mlir/lib/Conversion/LLVMCommon/TypeConverter.cpp b/mlir/lib/Conversion/LLVMCommon/TypeConverter.cpp
--- a/mlir/lib/Conversion/LLVMCommon/TypeConverter.cpp
+++ b/mlir/lib/Conversion/LLVMCommon/TypeConverter.cpp
@@ -473,9 +473,8 @@
                                     type.getScalableDims().back());
   assert(LLVM::isCompatibleVectorType(vectorType) &&
          "expected vector type compatible with the LLVM dialect");
-  assert(
-      (!type.isScalable() || (type.getRank() == 1)) &&
-      "expected 1-D scalable vector (n-D scalable vectors are not supported)");
+  assert(!type.dropBackDim().isScalable() &&
+         "only trailing dimension can be scalable");
   auto shape = type.getShape();
   for (int i = shape.size() - 2; i >= 0; --i)
     vectorType = LLVM::LLVMArrayType::get(vectorType, shape[i]);
diff --git a/mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir b/mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir
--- a/mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir
+++ b/mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir
@@ -2214,3 +2214,13 @@
   %0 = vector.scalable.extract %vec[0] : vector<8xf32> from vector<[4]xf32>
   return %0 : vector<8xf32>
 }
+
+// -----
+
+// CHECK-LABEL: @make_fixed_vector_of_scalable_vector
+func.func @make_fixed_vector_of_scalable_vector(%f : f64) -> vector<3x[2]xf64>
+{
+  // CHECK: %{{.*}} = llvm.mlir.undef : !llvm.array<3 x vector<[2]xf64>>
+  %res = vector.broadcast %f : f64 to vector<3x[2]xf64>
+  return %res : vector<3x[2]xf64>
+}