diff --git a/support/testing/infra/emulator.py b/support/testing/infra/emulator.py
index 9be1143944..3702ee2d48 100644
--- a/support/testing/infra/emulator.py
+++ b/support/testing/infra/emulator.py
@@ -153,7 +153,7 @@ class Emulator(object):
 
         self.connect_shell()
 
-        output, exit_code = self.run(f"date @{int(time.time())}")
+        output, exit_code = self.run(f"date -s @{int(time.time())}")
         if exit_code:
             raise SystemError("Cannot set date in virtual machine")