diff --git a/tests/gem_exec_nop.c b/tests/gem_exec_nop.c
index b381e9a9..fb0b6a54 100644
--- a/tests/gem_exec_nop.c
+++ b/tests/gem_exec_nop.c
@@ -189,7 +189,7 @@ static void all(int fd, uint32_t handle, int timeout)
 	 */
 	igt_assert_f(time < max + 10*min/9, /* ensure parallel execution */
 		     "Average time (%.3fus) exceeds expecation for parallel execution (min %.3fus, max %.3fus; limit set at %.3fus)\n",
-		     time, min, max, max + 10*min/9);
+		     1e6*time, 1e6*min, 1e6*max, 1e6*(max + 10*min/9));
 }
 
 igt_main