diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index 6e71cb49596c8..25251b120e66b 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -8534,6 +8534,9 @@ def aggregate(self, func=None, axis: Axis = 0, *args, **kwargs):
             result_in_dict = relabel_result(result, func, columns, order)
             result = DataFrame(result_in_dict, index=columns)
 
+        if isinstance(result, DataFrame):
+            result = result.squeeze()
+
         return result
 
     agg = aggregate
diff --git a/pandas/tests/frame/test_aggregate.py b/pandas/tests/frame/test_aggregate.py
new file mode 100644
index 0000000000000..3fd7e147e58a7
--- /dev/null
+++ b/pandas/tests/frame/test_aggregate.py
@@ -0,0 +1,19 @@
+import numpy as np
+
+import pandas as pd
+from pandas import (
+    DataFrame,
+    Series,
+)
+import pandas._testing as tm
+
+
+def test_frame_aggregate():
+    # GH#41672
+    result = DataFrame([], columns=["lang", "name"])
+    result = result.agg({"name": lambda y: y.values})
+    assert type(result) == Series
+
+    result = DataFrame([["a", "boof"]], columns=["lang", "name"])
+    result = result.agg({"name": lambda y: y.values})
+    assert type(result) == Series