diff --git a/scripts/pyqt5_to_pyqt6/pyqt5_to_pyqt6.py b/scripts/pyqt5_to_pyqt6/pyqt5_to_pyqt6.py
index 1b8a5978bdc7..885fff3e2665 100755
--- a/scripts/pyqt5_to_pyqt6/pyqt5_to_pyqt6.py
+++ b/scripts/pyqt5_to_pyqt6/pyqt5_to_pyqt6.py
@@ -427,6 +427,7 @@ def visit_import(_node: ast.ImportFrom, _parent):
     for i, token in reversed_enumerate(tokens):
         if token.offset in import_offsets:
             end_import_offset = Offset(*import_offsets[token.offset][-2:])
+            del import_offsets[token.offset]
             assert tokens[i].src == 'from'
             token_index = i + 1
             while not tokens[token_index].src.strip():