diff --git a/pysnmp/hlapi/asyncio/cmdgen.py b/pysnmp/hlapi/asyncio/cmdgen.py
index 2f998d209..3a55a5e64 100644
--- a/pysnmp/hlapi/asyncio/cmdgen.py
+++ b/pysnmp/hlapi/asyncio/cmdgen.py
@@ -621,7 +621,7 @@ async def walkCmd(
     *varBinds,
     **options
 ) -> AsyncGenerator[
-    tuple[errind.ErrorIndication, Integer32 | int, Integer32 | int, tuple[ObjectType]],
+    "tuple[errind.ErrorIndication, Integer32 | int, Integer32 | int, tuple[ObjectType]]",
     None,
 ]:
     r"""Creates a generator to perform one or more SNMP GETNEXT queries.
@@ -806,7 +806,7 @@ async def bulkWalkCmd(
     *varBinds,
     **options
 ) -> AsyncGenerator[
-    tuple[errind.ErrorIndication, Integer32 | int, Integer32 | int, tuple[ObjectType]],
+    "tuple[errind.ErrorIndication, Integer32 | int, Integer32 | int, tuple[ObjectType]]",
     None,
 ]:
     r"""Creates a generator to perform one or more SNMP GETBULK queries.
diff --git a/pysnmp/hlapi/asyncio/sync/cmdgen.py b/pysnmp/hlapi/asyncio/sync/cmdgen.py
index e34c66525..65df91848 100644
--- a/pysnmp/hlapi/asyncio/sync/cmdgen.py
+++ b/pysnmp/hlapi/asyncio/sync/cmdgen.py
@@ -412,7 +412,7 @@ def walkCmd(
     *varBinds,
     **options
 ) -> Generator[
-    tuple[errind.ErrorIndication, Integer32 | int, Integer32 | int, tuple[ObjectType]],
+    "tuple[errind.ErrorIndication, Integer32 | int, Integer32 | int, tuple[ObjectType]]",
     None,
     None,
 ]:
@@ -540,7 +540,7 @@ def bulkWalkCmd(
     *varBinds,
     **options
 ) -> Generator[
-    tuple[errind.ErrorIndication, Integer32 | int, Integer32 | int, tuple[ObjectType]],
+    "tuple[errind.ErrorIndication, Integer32 | int, Integer32 | int, tuple[ObjectType]]",
     None,
     None,
 ]: