diff --git a/gso/workflows/iptrunk/create_iptrunk.py b/gso/workflows/iptrunk/create_iptrunk.py
index e1549c530a2db2ba0f591508245b48c3cb9f9149..8fa3341b10e9e4d992fd4cd460102fbc7be89944 100644
--- a/gso/workflows/iptrunk/create_iptrunk.py
+++ b/gso/workflows/iptrunk/create_iptrunk.py
@@ -161,13 +161,13 @@ def initial_input_form_generator(product_name: str) -> FormGenerator:
         def validate_iptrunk_unique_interface_side_b(cls, side_b_ae_members: list[LAGMember]) -> list[LAGMember]:
             return validate_iptrunk_unique_interface(side_b_ae_members)
 
-        @validator("side_a_ae_members", allow_reuse=True)
-        def validate_interface_name_members(cls, side_a_ae_members: list[LAGMember]) -> list[LAGMember]:
+        @validator("side_b_ae_members", allow_reuse=True)
+        def validate_interface_name_members(cls, side_b_ae_members: list[LAGMember]) -> list[LAGMember]:
             ret_val = None
-            if get_router_vendor(router_a) == RouterVendor.NOKIA:
-                ret_val = side_a_ae_members
+            if get_router_vendor(router_b) == RouterVendor.NOKIA:
+                ret_val = side_b_ae_members
             else:
-                ret_val = validate_interface_name_list(side_a_ae_members)
+                ret_val = validate_interface_name_list(side_b_ae_members)
 
             return ret_val