diff --git a/xCAT-server/lib/xcat/plugins/imgcapture.pm b/xCAT-server/lib/xcat/plugins/imgcapture.pm
index 1290d91f6..c04dd6fed 100644
--- a/xCAT-server/lib/xcat/plugins/imgcapture.pm
+++ b/xCAT-server/lib/xcat/plugins/imgcapture.pm
@@ -101,6 +101,12 @@ sub process_request {
         $profile = $ref_nodetype->{profile};
     }
 
+    # -i flag is required with sles genimage
+    if (!$bootif && $os =~ /^sles/) {
+        $bootif = "eth0";
+    }
+    
+
     # check whether the osimage exists or not
     if($osimg) {
         my $osimgtab=xCAT::Table->new('osimage', -create=>1);