diff --git a/performance-metrics/src/performance_tests.rs b/performance-metrics/src/performance_tests.rs
index 75cfeff30..557075f2d 100644
--- a/performance-metrics/src/performance_tests.rs
+++ b/performance-metrics/src/performance_tests.rs
@@ -518,6 +518,7 @@ pub fn performance_restore_latency(control: &PerformanceTestControl) -> f64 {
         ));
 
         let _ = child.kill();
+        child.wait().unwrap();
 
         let event_path = String::from(guest.tmp_dir.as_path().join("event.json").to_str().unwrap());
         let mut cmd = GuestCommand::new(&guest);