diff --git a/test-network-nano-bash/peer1.sh b/test-network-nano-bash/peer1.sh
index 6655936b..89d5d8da 100755
--- a/test-network-nano-bash/peer1.sh
+++ b/test-network-nano-bash/peer1.sh
@@ -1,6 +1,12 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
+if [ "$(uname)" == "Linux" ] ; then
+  CCADDR="127.0.0.1"
+else
+  CCADDR="host.docker.internal"
+fi
+
 # look for binaries in local dev environment /build/bin directory and then in local samples /bin directory
 export PATH="${PWD}"/../../fabric/build/bin:"${PWD}"/../bin:"$PATH"
 export FABRIC_CFG_PATH="${PWD}"/../config
@@ -13,7 +19,7 @@ export CORE_PEER_TLS_ROOTCERT_FILE="${PWD}"/crypto-config/peerOrganizations/org1
 export CORE_PEER_ID=peer0.org1.example.com
 export CORE_PEER_ADDRESS=127.0.0.1:7051
 export CORE_PEER_LISTENADDRESS=127.0.0.1:7051
-export CORE_PEER_CHAINCODEADDRESS=host.docker.internal:7052
+export CORE_PEER_CHAINCODEADDRESS="${CCADDR}":7052
 export CORE_PEER_CHAINCODELISTENADDRESS=127.0.0.1:7052
 # bootstrap peer is the other peer in the same org
 export CORE_PEER_GOSSIP_BOOTSTRAP=127.0.0.1:7053
diff --git a/test-network-nano-bash/peer2.sh b/test-network-nano-bash/peer2.sh
index 39f66312..163df06e 100755
--- a/test-network-nano-bash/peer2.sh
+++ b/test-network-nano-bash/peer2.sh
@@ -1,6 +1,12 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
+if [ "$(uname)" == "Linux" ] ; then
+  CCADDR="127.0.0.1"
+else
+  CCADDR="host.docker.internal"
+fi
+
 # look for binaries in local dev environment /build/bin directory and then in local samples /bin directory
 export PATH="${PWD}"/../../fabric/build/bin:"${PWD}"/../bin:"$PATH"
 export FABRIC_CFG_PATH="${PWD}"/../config
@@ -13,7 +19,7 @@ export CORE_PEER_TLS_ROOTCERT_FILE="${PWD}"/crypto-config/peerOrganizations/org1
 export CORE_PEER_ID=peer1.org1.example.com
 export CORE_PEER_ADDRESS=127.0.0.1:7053
 export CORE_PEER_LISTENADDRESS=127.0.0.1:7053
-export CORE_PEER_CHAINCODEADDRESS=host.docker.internal:7054
+export CORE_PEER_CHAINCODEADDRESS="${CCADDR}":7054
 export CORE_PEER_CHAINCODELISTENADDRESS=127.0.0.1:7054
 # bootstrap peer is the other peer in the same org
 export CORE_PEER_GOSSIP_BOOTSTRAP=127.0.0.1:7051
diff --git a/test-network-nano-bash/peer3.sh b/test-network-nano-bash/peer3.sh
index 58abfdf0..1054118f 100755
--- a/test-network-nano-bash/peer3.sh
+++ b/test-network-nano-bash/peer3.sh
@@ -1,6 +1,12 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
+if [ "$(uname)" == "Linux" ] ; then
+  CCADDR="127.0.0.1"
+else
+  CCADDR="host.docker.internal"
+fi
+
 # look for binaries in local dev environment /build/bin directory and then in local samples /bin directory
 export PATH="${PWD}"/../../fabric/build/bin:"${PWD}"/../bin:"$PATH"
 export FABRIC_CFG_PATH="${PWD}"/../config
@@ -13,7 +19,7 @@ export CORE_PEER_TLS_ROOTCERT_FILE="${PWD}"/crypto-config/peerOrganizations/org2
 export CORE_PEER_ID=peer0.org2.example.com
 export CORE_PEER_ADDRESS=127.0.0.1:7055
 export CORE_PEER_LISTENADDRESS=127.0.0.1:7055
-export CORE_PEER_CHAINCODEADDRESS=host.docker.internal:7056
+export CORE_PEER_CHAINCODEADDRESS="${CCADDR}":7056
 export CORE_PEER_CHAINCODELISTENADDRESS=127.0.0.1:7056
 # bootstrap peer is the other peer in the same org
 export CORE_PEER_GOSSIP_BOOTSTRAP=127.0.0.1:7057
diff --git a/test-network-nano-bash/peer4.sh b/test-network-nano-bash/peer4.sh
index 2923f874..a62afe58 100755
--- a/test-network-nano-bash/peer4.sh
+++ b/test-network-nano-bash/peer4.sh
@@ -1,6 +1,12 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
+if [ "$(uname)" == "Linux" ] ; then
+  CCADDR="127.0.0.1"
+else
+  CCADDR="host.docker.internal"
+fi
+
 # look for binaries in local dev environment /build/bin directory and then in local samples /bin directory
 export PATH="${PWD}"/../../fabric/build/bin:"${PWD}"/../bin:"$PATH"
 export FABRIC_CFG_PATH="${PWD}"/../config
@@ -13,7 +19,7 @@ export CORE_PEER_TLS_ROOTCERT_FILE="${PWD}"/crypto-config/peerOrganizations/org2
 export CORE_PEER_ID=peer0.org2.example.com
 export CORE_PEER_ADDRESS=127.0.0.1:7057
 export CORE_PEER_LISTENADDRESS=127.0.0.1:7057
-export CORE_PEER_CHAINCODEADDRESS=host.docker.internal:7058
+export CORE_PEER_CHAINCODEADDRESS="${CCADDR}":7058
 export CORE_PEER_CHAINCODELISTENADDRESS=127.0.0.1:7058
 # bootstrap peer is the other peer in the same org
 export CORE_PEER_GOSSIP_BOOTSTRAP=127.0.0.1:7055