diff --git a/scripts/run-vitest.mjs b/scripts/run-vitest.mjs
index 23254e47928..f06537dabb1 100644
--- a/scripts/run-vitest.mjs
+++ b/scripts/run-vitest.mjs
@@ -181,10 +181,18 @@ function main(argv = process.argv.slice(2), env = process.env) {
       console.error(message);
     },
     onTimeout: () => {
-      forwardSignalToVitestProcessGroup({ child, signal: "SIGTERM" });
+      forwardSignalToVitestProcessGroup({
+        child,
+        signal: "SIGTERM",
+        kill: process.kill.bind(process),
+      });
     },
     onForceKill: () => {
-      forwardSignalToVitestProcessGroup({ child, signal: "SIGKILL" });
+      forwardSignalToVitestProcessGroup({
+        child,
+        signal: "SIGKILL",
+        kill: process.kill.bind(process),
+      });
     },
   });
   forwardVitestOutput(child.stdout, process.stdout);
diff --git a/scripts/test-projects.mjs b/scripts/test-projects.mjs
index ee14f1cfd2b..9378276738d 100644
--- a/scripts/test-projects.mjs
+++ b/scripts/test-projects.mjs
@@ -124,10 +124,18 @@ function runVitestSpec(spec) {
         console.error(message);
       },
       onTimeout: () => {
-        forwardSignalToVitestProcessGroup({ child, signal: "SIGTERM" });
+        forwardSignalToVitestProcessGroup({
+          child,
+          signal: "SIGTERM",
+          kill: process.kill.bind(process),
+        });
       },
       onForceKill: () => {
-        forwardSignalToVitestProcessGroup({ child, signal: "SIGKILL" });
+        forwardSignalToVitestProcessGroup({
+          child,
+          signal: "SIGKILL",
+          kill: process.kill.bind(process),
+        });
       },
     });