diff --git a/device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/sai_2100.xml b/device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/sai_2100.xml
index c9b844cd4bf..92150596df6 100644
--- a/device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/sai_2100.xml
+++ b/device/mellanox/x86_64-mlnx_msn2100-r0/ACS-MSN2100/sai_2100.xml
@@ -5,6 +5,9 @@
 		<!-- Device MAC address  -->
 		<device-mac-address>00:02:03:04:05:00</device-mac-address>
 
+                <!-- ISSU enabled -->
+                <issu-enabled>1</issu-enabled>
+
 		<!-- Number of ports in the following port list -->
 		<number-of-physical-ports>16</number-of-physical-ports>
 
diff --git a/device/mellanox/x86_64-mlnx_msn2740-r0/ACS-MSN2740/sai_2740.xml b/device/mellanox/x86_64-mlnx_msn2740-r0/ACS-MSN2740/sai_2740.xml
index 559f2bdd10c..955ea3f8b1b 100644
--- a/device/mellanox/x86_64-mlnx_msn2740-r0/ACS-MSN2740/sai_2740.xml
+++ b/device/mellanox/x86_64-mlnx_msn2740-r0/ACS-MSN2740/sai_2740.xml
@@ -5,6 +5,9 @@
 		<!-- Device MAC address  -->
 		<device-mac-address>00:02:03:04:05:00</device-mac-address>
 
+                <!-- ISSU enabled -->
+                <issu-enabled>1</issu-enabled>
+
 		<!-- Number of ports in the following port list -->
 		<number-of-physical-ports>32</number-of-physical-ports>
 
diff --git a/device/mellanox/x86_64-mlnx_msn3800-r0/ACS-MSN3800/sai_3800.xml b/device/mellanox/x86_64-mlnx_msn3800-r0/ACS-MSN3800/sai_3800.xml
index 1b3c77ce381..4d9cc3cf7f8 100644
--- a/device/mellanox/x86_64-mlnx_msn3800-r0/ACS-MSN3800/sai_3800.xml
+++ b/device/mellanox/x86_64-mlnx_msn3800-r0/ACS-MSN3800/sai_3800.xml
@@ -5,8 +5,8 @@
         <!-- Device MAC address  -->
         <device-mac-address>00:02:03:04:05:00</device-mac-address>
 
-		<!-- ISSU enabled -->
-		<issu-enabled>1</issu-enabled>
+	<!-- ISSU enabled -->
+	<issu-enabled>1</issu-enabled>
 
         <!-- Number of ports in the following port list -->
         <number-of-physical-ports>64</number-of-physical-ports>