diff --git a/src/shared/bus-unit-util.c b/src/shared/bus-unit-util.c
index dff87f565e..3ea1bd29c9 100644
--- a/src/shared/bus-unit-util.c
+++ b/src/shared/bus-unit-util.c
@@ -744,7 +744,7 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
                        "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath",
                        "WorkingDirectory", "RootDirectory", "SyslogIdentifier",
                        "ProtectSystem", "ProtectHome", "SELinuxContext", "RootImage",
-                       "RuntimeDirectoryPreserve", "Personality", "KeyringMode"))
+                       "RuntimeDirectoryPreserve", "Personality", "KeyringMode", "NetworkNamespacePath"))
 
                 return bus_append_string(m, field, eq);