diff --git a/postinstall.sh b/postinstall.sh
index 4a4df56f758105be98473466eef19a80f64cdead..263f12344148b5b5cfcc522e6be3d0e9f55f214e 100755
--- a/postinstall.sh
+++ b/postinstall.sh
@@ -29,7 +29,7 @@ then
     do
         echo "Running post install for $ctn"
         scp postinstall_$ctn.sh $ctn:.
-        ssh $ctn postinstall_$ctn.sh
+        ssh $ctn ./postinstall_$ctn.sh
         ssh $ctn rm postinstall_$ctn.sh
     done
 else