diff --git a/src/app/OperationalSessionSetup.cpp b/src/app/OperationalSessionSetup.cpp
index 983c04a37e3f91..023f1429650401 100644
--- a/src/app/OperationalSessionSetup.cpp
+++ b/src/app/OperationalSessionSetup.cpp
@@ -436,7 +436,6 @@ CHIP_ERROR OperationalSessionSetup::LookupPeerAddress()
 
 void OperationalSessionSetup::PerformLookupOnExistingSession()
 {
-    CHIP_ERROR err   = CHIP_NO_ERROR;
     bool isConnected = false;
 
     if (mPerformingLookupOnConnectedSession)