diff --git a/pysam/libcalignmentfile.pyi b/pysam/libcalignmentfile.pyi
index 28b395ae..30ed7e16 100644
--- a/pysam/libcalignmentfile.pyi
+++ b/pysam/libcalignmentfile.pyi
@@ -20,7 +20,7 @@ else:
     from typing import Literal
 
 from pysam.libchtslib import HTSFile, _HasFileNo
-from pysam.libcalignedsegment import AlignedSegment
+from pysam.libcalignedsegment import AlignedSegment, PileupColumn
 from pysam.libcfaidx import FastaFile
 
 class IndexStats(NamedTuple):
@@ -204,7 +204,7 @@ class IteratorRowRegion(IteratorRow): ...
 class IteratorRowSelection(IteratorRow): ...
 
 class IteratorColumn:
-    def __iter__(self) -> IteratorRow: ...
+    def __iter__(self) -> IteratorColumn: ...
     def __next__(self) -> PileupColumn: ...
     @property
     def seq_len(self) -> int: ...