diff --git a/build/geropkg/attach.sh b/build/geropkg/attach.sh
index df1609ab..56be2d99 100755
--- a/build/geropkg/attach.sh
+++ b/build/geropkg/attach.sh
@@ -5,5 +5,30 @@ DATADIR="${ROOT}/data"
 if [ ! -z "$1" ]; then
     DATADIR=$1
 fi
+
+function sysname() {
+
+    SYSTEM=`uname -s`
+    if [[ "Darwin" == "$SYSTEM" ]]
+    then
+        echo "Darwin"
+    fi
+
+    if [[ "Linux" == "$SYSTEM" ]]
+    then
+        name=`cat /etc/system-release|awk '{print $1}'`
+        echo "Linux $name"
+    fi
+}
+
+SNAME=`sysname`
+if [[ "Darwin" = "$SNAME" ]];then
+    export DYLD_LIBRARY_PATH=${ROOT}/czero/lib/
+    echo $DYLD_LIBRARY_PATH
+else
+    export LD_LIBRARY_PATH=${ROOT}/czero/lib/
+    echo $LD_LIBRARY_PATH
+fi
+
 ${ROOT}/bin/gero --datadir=${DATADIR} attach
 
diff --git a/build/geropkg/startup.sh b/build/geropkg/startup.sh
index e9fe5f17..76ee7330 100755
--- a/build/geropkg/startup.sh
+++ b/build/geropkg/startup.sh
@@ -47,7 +47,7 @@ if [[ $# -gt 0 ]]; then
 		    cmd="$cmd --alpha";shift;;
         --rpc)
 		    localhost=$(hostname -I|awk -F ' ' '{print $1}')
-		    cmd="$cmd --rpc --rpcport $2 --rpcaddr $localhost --rpcapi 'personal,sero,web3' --rpccorsdomain '*'";shift;;
+		    cmd="$cmd --rpc --rpcport $2 --rpcaddr $localhost --rpcapi 'personal,sero,web3' --rpccorsdomain '*'";shift 2;;
         --port)
             cmd=${cmd/--port ${DEFAULT_PORT}/--port $2};shift 2;;
         --keystore)