diff --git a/platform/broadcom/sonic-platform-modules-cel/debian/platform-modules-haliburton.init b/platform/broadcom/sonic-platform-modules-cel/debian/platform-modules-haliburton.init
index 3f6358bf4a..aff8503d75 100644
--- a/platform/broadcom/sonic-platform-modules-cel/debian/platform-modules-haliburton.init
+++ b/platform/broadcom/sonic-platform-modules-cel/debian/platform-modules-haliburton.init
@@ -53,6 +53,7 @@ start)
         [ $found -eq 0 ] && echo "cannot find iSMT" && exit 1
 
         i2cset -y ${devnum} 0x73 0x10 0x00 0x01 i
+        sleep 0.5
 
         # Attach PCA9548 0x73 Channel Extender for CPU Board
         echo pca9548 0x73 > /sys/bus/i2c/devices/i2c-${devnum}/new_device