diff --git a/mlir/python/mlir/dialects/_structured_transform_ops_ext.py b/mlir/python/mlir/dialects/_structured_transform_ops_ext.py
--- a/mlir/python/mlir/dialects/_structured_transform_ops_ext.py
+++ b/mlir/python/mlir/dialects/_structured_transform_ops_ext.py
@@ -462,7 +462,7 @@
 
 
 class MultiTileSizesOp:
-    """Specialization for MultitileSizesOp class."""
+    """Specialization for MultiTileSizesOp class."""
 
     def __init__(
         self,
@@ -475,8 +475,6 @@
         loc=None,
         ip=None,
     ):
-        if divisor is None:
-            divisor = 1
         super().__init__(
             result_type,
             result_type,
diff --git a/mlir/test/python/dialects/transform_structured_ext.py b/mlir/test/python/dialects/transform_structured_ext.py
--- a/mlir/test/python/dialects/transform_structured_ext.py
+++ b/mlir/test/python/dialects/transform_structured_ext.py
@@ -297,7 +297,7 @@
 
 
 @run
-def testMultitileSizes():
+def testMultitileSizesCompact():
     sequence = transform.SequenceOp(
         transform.FailurePropagationMode.Propagate, [], pdl.OperationType.get()
     )
@@ -308,8 +308,34 @@
         transform.YieldOp()
     # CHECK-LABEL: TEST: testMultitileSizes
     # CHECK: transform.sequence
+    # CHECK-NOT: divisor
     # CHECK: transform.structured.multitile_sizes
+    # CHECK-NOT: divisor
     # CHECK-DAG: dimension = 1
+    # CHECK-NOT: divisor
+    # CHECK-DAG: target_size = 42
+    # CHECK-NOT: divisor
+
+
+@run
+def testMultitileSizesAllArgs():
+    sequence = transform.SequenceOp(
+        transform.FailurePropagationMode.Propagate, [], pdl.OperationType.get()
+    )
+    with InsertionPoint(sequence.body):
+        structured.MultiTileSizesOp(
+            pdl.OperationType.get(),
+            sequence.bodyTarget,
+            dimension=1,
+            target_size=42,
+            divisor=2,
+        )
+        transform.YieldOp()
+    # CHECK-LABEL: TEST: testMultitileSizes
+    # CHECK: transform.sequence
+    # CHECK: transform.structured.multitile_sizes
+    # CHECK-DAG: dimension = 1
+    # CHECK-DAG: divisor = 2
     # CHECK-DAG: target_size = 42