diff --git a/termius/core/models/utils.py b/termius/core/models/utils.py
index a411aff..5cb98e9 100644
--- a/termius/core/models/utils.py
+++ b/termius/core/models/utils.py
@@ -62,5 +62,5 @@ def reducer(self, accumulator, value):
 def merge_field(left, right, field):
     """Merge field of right instance to left one."""
     left_field = getattr(left, field)
-    if left_field is None:
+    if not left_field:
         setattr(left, field, getattr(right, field))
diff --git a/tests/integration/info.bats b/tests/integration/info.bats
index 9a6aed9..463e398 100644
--- a/tests/integration/info.bats
+++ b/tests/integration/info.bats
@@ -35,7 +35,7 @@ setup() {
     echo ${lines[*]} >&2
     cat ~/.termius/storage | jq . >&2
     [ "$status" -eq 0 ]
-    [ "${lines[0]}" = "ssh -p 2022 -o StrictHostKeyChecking=yes -o IdentitiesOnly=no -o ServerAliveInterval=100 -o ServerAliveCountMax=20 -o ForwardAgent=yes localhost" ]
+    [ "${lines[0]}" = "ssh -p 2022 -o StrictHostKeyChecking=yes -o IdentitiesOnly=no -o ServerAliveInterval=100 -o ServerAliveCountMax=20 -o ForwardAgent=yes root@localhost" ]
 }
 
 @test "info host use ssh formatter with exta options disable agent forwarding" {
@@ -45,7 +45,7 @@ setup() {
     echo ${lines[*]} >&2
     cat ~/.termius/storage | jq . >&2
     [ "$status" -eq 0 ]
-    [ "${lines[0]}" = "ssh -p 2022 -o StrictHostKeyChecking=yes -o IdentitiesOnly=no -o ServerAliveInterval=100 -o ServerAliveCountMax=20 -o ForwardAgent=no localhost" ]
+    [ "${lines[0]}" = "ssh -p 2022 -o StrictHostKeyChecking=yes -o IdentitiesOnly=no -o ServerAliveInterval=100 -o ServerAliveCountMax=20 -o ForwardAgent=no root@localhost" ]
 }
 @test "info group use default formatter" {
     group=$(termius group -L test --port 2022)