diff --git a/scripts/bootstrap.sh b/scripts/bootstrap.sh
index 96c6da31..a71b5900 100755
--- a/scripts/bootstrap.sh
+++ b/scripts/bootstrap.sh
@@ -125,7 +125,11 @@ binaryDownload() {
 
 binariesInstall() {
   echo "===> Downloading version ${FABRIC_TAG} platform specific fabric binaries"
-  binaryDownload ${BINARY_FILE} https://nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric/hyperledger-fabric/${ARCH}-${VERSION}/${BINARY_FILE}
+  if [ -f ${BINARY_FILE} ];then
+        binaryDownload ${BINARY_FILE} https://nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric/hyperledger-fabric/${ARCH}-${VERSION}/${BINARY_FILE}
+  else
+     echo ${BINARY_FILE} " aready downloaded!"
+  fi
   if [ $? -eq 22 ]; then
      echo
      echo "------> ${FABRIC_TAG} platform specific fabric binary is not available to download <----"
@@ -133,7 +137,11 @@ binariesInstall() {
    fi
 
   echo "===> Downloading version ${CA_TAG} platform specific fabric-ca-client binary"
-  binaryDownload ${CA_BINARY_FILE} https://nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric-ca/hyperledger-fabric-ca/${ARCH}-${CA_VERSION}/${CA_BINARY_FILE}
+  if [ -f ${CA_BINARY_FILE} ];then
+        binaryDownload ${CA_BINARY_FILE} https://nexus.hyperledger.org/content/repositories/releases/org/hyperledger/fabric-ca/hyperledger-fabric-ca/${ARCH}-${CA_VERSION}/${CA_BINARY_FILE}
+  else
+     echo ${CA_BINARY_FILE} " aready downloaded!"
+  fi
   if [ $? -eq 22 ]; then
      echo
      echo "------> ${CA_TAG} fabric-ca-client binary is not available to download  (Available from 1.1.0-rc1) <----"