diff --git a/pandas/core/indexes/interval.py b/pandas/core/indexes/interval.py
index b0b9c5419e2ad..13811c28e6c1e 100644
--- a/pandas/core/indexes/interval.py
+++ b/pandas/core/indexes/interval.py
@@ -558,8 +558,7 @@ def _maybe_convert_i8(self, key):
             left = self._maybe_convert_i8(key.left)
             right = self._maybe_convert_i8(key.right)
             constructor = Interval if scalar else IntervalIndex.from_arrays
-            # error: "object" not callable
-            return constructor(left, right, closed=self.closed)  # type: ignore[operator]
+            return constructor(left, right, closed=self.closed)
 
         if scalar:
             # Timestamp/Timedelta