diff --git a/pandas/_libs/index.pyx b/pandas/_libs/index.pyx
index 741e5553141f7..205ab9002379d 100644
--- a/pandas/_libs/index.pyx
+++ b/pandas/_libs/index.pyx
@@ -195,7 +195,7 @@ cdef class IndexEngine:
         if count > 1:
             return indexer
         if count == 1:
-            return int(found[0])
+            return found[0]
 
         raise KeyError(val)
 
diff --git a/pandas/_libs/index_class_helper.pxi.in b/pandas/_libs/index_class_helper.pxi.in
index 4ea35da0626f3..fc66c1c987d6e 100644
--- a/pandas/_libs/index_class_helper.pxi.in
+++ b/pandas/_libs/index_class_helper.pxi.in
@@ -74,7 +74,7 @@ cdef class {{name}}Engine(IndexEngine):
         if count > 1:
             return indexer
         if count == 1:
-            return int(found[0])
+            return found[0]
 
         raise KeyError(val)