diff --git a/src/core/main.c b/src/core/main.c
index 2c315930ed0..02c0488208e 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -1435,9 +1435,7 @@ int main(int argc, char *argv[]) {
 
                 /* clear the kernel timestamp,
                  * because we are in a container */
-                kernel_timestamp.monotonic = 0ULL;
-                kernel_timestamp.realtime = 0ULL;
-
+                kernel_timestamp = DUAL_TIMESTAMP_NULL;
         } else {
                 /* Running as user instance */
                 arg_running_as = MANAGER_USER;