diff --git a/src/test/fixture/sdkintegration/peer-base/peer-base-no-tls.yaml b/src/test/fixture/sdkintegration/peer-base/peer-base-no-tls.yaml
index a1f24db4..d62c8b75 100644
--- a/src/test/fixture/sdkintegration/peer-base/peer-base-no-tls.yaml
+++ b/src/test/fixture/sdkintegration/peer-base/peer-base-no-tls.yaml
@@ -14,4 +14,4 @@ services:
       - CORE_PEER_GOSSIP_USELEADERELECTION=true
       - CORE_PEER_PROFILE_ENABLED=true
     working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
-    command: peer node start --peer-defaultchain=false
+    command: peer node start
diff --git a/src/test/fixture/sdkintegration/peer-base/peer-base.yaml b/src/test/fixture/sdkintegration/peer-base/peer-base.yaml
index 1834920a..0830baf8 100644
--- a/src/test/fixture/sdkintegration/peer-base/peer-base.yaml
+++ b/src/test/fixture/sdkintegration/peer-base/peer-base.yaml
@@ -23,4 +23,4 @@ services:
       - CORE_PEER_TLS_ROOTCERT_FILE=/etc/hyperledger/msp/peer/tls/ca.crt
       - CORE_PEER_TLS_ENABLED=${ORG_HYPERLEDGER_FABRIC_SDKTEST_INTEGRATIONTESTS_TLS}
     working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
-    command: peer node start --peer-defaultchain=false
+    command: peer node start