diff --git a/python/pylibcudf/pylibcudf/expressions.pyx b/python/pylibcudf/pylibcudf/expressions.pyx
index caf57128c86..a44c9e25987 100644
--- a/python/pylibcudf/pylibcudf/expressions.pyx
+++ b/python/pylibcudf/pylibcudf/expressions.pyx
@@ -198,8 +198,8 @@ cdef class ColumnNameReference(Expression):
         Name of this column in the table metadata
         (provided when the expression is evaluated).
     """
-    def __cinit__(self, str colmun_name):
+    def __cinit__(self, str name):
         self.c_obj = <expression_ptr> \
             move(make_unique[libcudf_exp.column_name_reference](
-                <string>(column_name.encode("utf-8"))
+                <string>(name.encode("utf-8"))
             ))
diff --git a/python/pylibcudf/pylibcudf/filling.pxd b/python/pylibcudf/pylibcudf/filling.pxd
index b9345f8cd42..301b652b6ac 100644
--- a/python/pylibcudf/pylibcudf/filling.pxd
+++ b/python/pylibcudf/pylibcudf/filling.pxd
@@ -24,7 +24,7 @@ cpdef void fill_in_place(
 )
 
 cpdef Column sequence(
-    size_type size,
+    int size,
     Scalar init,
     Scalar step,
 )
diff --git a/python/pylibcudf/pylibcudf/filling.pyx b/python/pylibcudf/pylibcudf/filling.pyx
index b4623ee90a1..61b430e64aa 100644
--- a/python/pylibcudf/pylibcudf/filling.pyx
+++ b/python/pylibcudf/pylibcudf/filling.pyx
@@ -89,7 +89,7 @@ cpdef void fill_in_place(
             dereference(value.c_obj)
         )
 
-cpdef Column sequence(int size, Scalar init, Scalar step):
+cpdef Column sequence(size_type size, Scalar init, Scalar step):
     """Create a sequence column of size ``size`` with initial value ``init`` and step
     ``step``.