diff --git a/xCAT-rmc/xCAT-rmc.spec b/xCAT-rmc/xCAT-rmc.spec
index 986d5a24e..61a2ef91b 100644
--- a/xCAT-rmc/xCAT-rmc.spec
+++ b/xCAT-rmc/xCAT-rmc.spec
@@ -62,6 +62,11 @@ rm -rf $RPM_BUILD_ROOT
   fi
 %else
   #restart the xcatd
-  $XCATROOT/sbin/xcatstart
+  XCATROOT=$RPM_INSTALL_PREFIX0 $RPM_INSTALL_PREFIX0/sbin/xcatstart
 %endif
 
+
+
+
+
+
diff --git a/xCAT-server/xCAT-server.spec b/xCAT-server/xCAT-server.spec
index 46e505608..a8d67a0c6 100644
--- a/xCAT-server/xCAT-server.spec
+++ b/xCAT-server/xCAT-server.spec
@@ -163,7 +163,7 @@ fi
 if [ "$1" -gt "1" ]; then #only on upgrade for AIX...
     #migration issue for monitoring
     XCATROOT=$RPM_INSTALL_PREFIX0 $RPM_INSTALL_PREFIX0/sbin/chtab filename=monitorctrl.pm notification -d 
-    $XCATROOT/sbin/xcatstart
+    XCATROOT=$RPM_INSTALL_PREFIX0 $RPM_INSTALL_PREFIX0/sbin/xcatstart
 fi  
 %endif