diff --git a/xCAT-server/share/xcat/install/scripts/post.debian b/xCAT-server/share/xcat/install/scripts/post.debian
index b533faeb7..40d26c8f0 100644
--- a/xCAT-server/share/xcat/install/scripts/post.debian
+++ b/xCAT-server/share/xcat/install/scripts/post.debian
@@ -34,7 +34,7 @@ export MASTER_IP="#XCATVAR:XCATMASTER#"
 export MASTER_IPS="#XCATVAR:XCATMASTER#"
 export MASTER="#XCATVAR:XCATMASTER#"
 export INSTALLDIR=#TABLE:site:key=installdir:value#
-export HTTPPORT=#TABLE:site:key=httpport:value#
+export HTTPPORT=#TABLEBLANKOKAY:site:key=httpport:value#
 if [ -z "$INSTALLDIR" ]; then
     INSTALLDIR="/install"
 fi
diff --git a/xCAT-server/share/xcat/install/scripts/post.xcat b/xCAT-server/share/xcat/install/scripts/post.xcat
index fc614b805..6cf90fb96 100755
--- a/xCAT-server/share/xcat/install/scripts/post.xcat
+++ b/xCAT-server/share/xcat/install/scripts/post.xcat
@@ -8,7 +8,7 @@ export XCATIPORT=#TABLE:site:key=xcatiport:value#
 export INSTALLDIR=#TABLE:site:key=installdir:value#
 export TFTPDIR=#TABLE:site:key=tftpdir:value#
 export XCATDEBUGMODE="#TABLEBLANKOKAY:site:key=xcatdebugmode:value#"
-export HTTPPORT="#TABLE:site:key=httpport:value#"
+export HTTPPORT="#TABLEBLANKOKAY:site:key=httpport:value#"
 
 #INCLUDE:#ENV:XCATROOT#/share/xcat/install/scripts/scriptlib#