diff --git a/source/script/smbtar b/source/script/smbtar
index cf3ff0ebe68..f062cba9f04 100644
--- a/source/script/smbtar
+++ b/source/script/smbtar
@@ -80,7 +80,8 @@ while getopts riavl:b:d:N:s:p:x:u:Xt: c; do
       tarcmd="x"
       ;;
    i) # [i]ncremental
-      tarargs=${tarargs}g
+      tarargs=${tarargs}ga
+      clientargs="-c 'tarmode inc'"
       ;;
    a) # [a]rchive
       tarargs=${tarargs}a