diff --git a/marimo/_plugins/stateless/status/_progress.py b/marimo/_plugins/stateless/status/_progress.py
index 82e6ed60ea8..6311acb5a1b 100644
--- a/marimo/_plugins/stateless/status/_progress.py
+++ b/marimo/_plugins/stateless/status/_progress.py
@@ -404,7 +404,7 @@ def __init__(
                         "A `total` must be provided."
                     )
 
-            if isinstance(collection, range):
+            elif isinstance(collection, range):
                 self.step = cast(range, collection).step
 
         elif total is None:
diff --git a/tests/_plugins/stateless/status/test_progress.py b/tests/_plugins/stateless/status/test_progress.py
index 2c4978e5d04..81240621dff 100644
--- a/tests/_plugins/stateless/status/test_progress.py
+++ b/tests/_plugins/stateless/status/test_progress.py
@@ -167,6 +167,22 @@ def test_progress_without_context():
             pass
 
 
+def test_progress_with_stepped_range_without_total() -> None:
+    assert runtime_context_installed() is False
+
+    progress = progress_bar(range(0, 10, 2))
+    assert list(progress) == [0, 2, 4, 6, 8]
+    assert (progress.progress.current, progress.progress.total) == (5, 5)
+
+
+def test_progress_with_stepped_range_and_total() -> None:
+    assert runtime_context_installed() is False
+
+    progress = progress_bar(range(0, 10, 2), total=10)
+    assert list(progress) == [0, 2, 4, 6, 8]
+    assert (progress.progress.current, progress.progress.total) == (10, 10)
+
+
 async def sleep(seconds):
     import asyncio