diff --git a/packages/cli/src/commands/start.ts b/packages/cli/src/commands/start.ts
index 3364ff1ef..ba1ec693b 100644
--- a/packages/cli/src/commands/start.ts
+++ b/packages/cli/src/commands/start.ts
@@ -1148,6 +1148,8 @@ async function runStartup(
     // SIGINT/SIGTERM so the dashboard group is also cleaned up on exit.
     if (!isWindows() && pid) {
       const forward = (): void => {
+        process.off("SIGINT", forward);
+        process.off("SIGTERM", forward);
         void killProcessTree(pid, "SIGTERM");
       };
       process.once("SIGINT", forward);