diff --git a/python/cudf/cudf/core/dataframe.py b/python/cudf/cudf/core/dataframe.py
index 0e25f245efd..5483dcf653c 100644
--- a/python/cudf/cudf/core/dataframe.py
+++ b/python/cudf/cudf/core/dataframe.py
@@ -1865,7 +1865,7 @@ def _make_operands_and_index_for_binop(
             )
             if len(other) != self._num_columns:
                 raise ValueError(
-                    "Other is the wrong length. Expected "
+                    "Other is of the wrong length. Expected "
                     f"{self._num_columns}, got {len(other)}"
                 )
 
diff --git a/python/cudf/cudf/tests/test_dataframe.py b/python/cudf/cudf/tests/test_dataframe.py
index bddc1316aec..a7fad792bd0 100644
--- a/python/cudf/cudf/tests/test_dataframe.py
+++ b/python/cudf/cudf/tests/test_dataframe.py
@@ -2106,6 +2106,11 @@ def test_binops_df(pdf, gdf, binop, other):
                 pass
 
 
+def test_binops_df_invalid(gdf):
+    with pytest.raises(TypeError):
+        gdf + np.array([1, 2])
+
+
 @pytest.mark.parametrize("binop", [operator.and_, operator.or_, operator.xor])
 def test_bitwise_binops_df(pdf, gdf, binop):
     d = binop(pdf, pdf + 1)