diff --git a/config/example/ir.env b/config/example/ir.env
index 71fb11182..318dd1c3d 100644
--- a/config/example/ir.env
+++ b/config/example/ir.env
@@ -12,7 +12,8 @@ NEOFS_IR_MORPH_ENDPOINT_CLIENT_1_ADDRESS="wss://sidechain2.fs.neo.org:30333/ws"
 NEOFS_IR_MORPH_VALIDATORS="0283120f4c8c1fc1d792af5063d2def9da5fddc90bc1384de7fcfdda33c3860170"
 
 NEOFS_IR_MAINNET_DIAL_TIMEOUT=5s
-NEOFS_IR_MORPH_ENDPOINT_CLIENT="wss://mainchain1.fs.neo.org:30333/ws wss://mainchain2.fs.neo.org:30333/ws"
+NEOFS_IR_MAINNET_ENDPOINT_CLIENT_0_ADDRESS="wss://mainchain1.fs.neo.org:30333/ws"
+NEOFS_IR_MAINNET_ENDPOINT_CLIENT_1_ADDRESS="wss://mainchain2.fs.neo.org:30333/ws"
 
 NEOFS_IR_CONTROL_AUTHORIZED_KEYS="035839e45d472a3b7769a2a1bd7d54c4ccd4943c3b40f547870e83a8fcbfb3ce11 028f42cfcb74499d7b15b35d9bff260a1c8d27de4f446a627406a382d8961486d6"
 NEOFS_IR_CONTROL_GRPC_ENDPOINT=localhost:8090
diff --git a/config/example/ir.yaml b/config/example/ir.yaml
index 2c765dbdc..eacd3ba03 100644
--- a/config/example/ir.yaml
+++ b/config/example/ir.yaml
@@ -23,8 +23,8 @@ mainnet:
   dial_timeout: 5s # Timeout for RPC client connection to mainchain; ignore if mainchain is disabled
   endpoint:
     client: # List of websocket RPC endpoints in mainchain; ignore if mainchain is disabled
-      - wss://mainchain1.fs.neo.org:30333/ws
-      - wss://mainchain.fs.neo.org:30333/ws
+      - address: wss://mainchain1.fs.neo.org:30333/ws
+      - address: wss://mainchain.fs.neo.org:30333/ws
 
 control:
   authorized_keys:  # List of hex-encoded 33-byte public keys that have rights to use the control service