diff --git a/packages/nx/src/executors/run-commands/running-tasks.ts b/packages/nx/src/executors/run-commands/running-tasks.ts
index b6ea2be8b9..8dbeaf7fea 100644
--- a/packages/nx/src/executors/run-commands/running-tasks.ts
+++ b/packages/nx/src/executors/run-commands/running-tasks.ts
@@ -515,20 +515,40 @@ class RunningNodeProcess implements RunningTask {
     });
     // Terminate any task processes on exit
     process.on('exit', () => {
-      this.kill();
+      // Call tree-kill without callback (fire-and-forget) since exit handlers can't be async
+      if (this.childProcess?.pid) {
+        treeKill(this.childProcess.pid, (err) => {
+          // Callback for tree-kill, but in exit handler it may not complete
+        });
+      }
     });
     process.on('SIGINT', () => {
-      this.kill('SIGTERM');
+      // Call tree-kill without waiting for completion
+      if (this.childProcess?.pid) {
+        treeKill(this.childProcess.pid, 'SIGTERM', (err) => {
+          // Ignore errors - process may have already exited
+        });
+      }
       // we exit here because we don't need to write anything to cache.
       process.exit(signalToCode('SIGINT'));
     });
     process.on('SIGTERM', () => {
-      this.kill('SIGTERM');
+      // Call tree-kill without waiting for completion
+      if (this.childProcess?.pid) {
+        treeKill(this.childProcess.pid, 'SIGTERM', (err) => {
+          // Ignore errors - process may have already exited
+        });
+      }
       // no exit here because we expect child processes to terminate which
       // will store results to the cache and will terminate this process
     });
     process.on('SIGHUP', () => {
-      this.kill('SIGTERM');
+      // Call tree-kill without waiting for completion
+      if (this.childProcess?.pid) {
+        treeKill(this.childProcess.pid, 'SIGTERM', (err) => {
+          // Ignore errors - process may have already exited
+        });
+      }
       // no exit here because we expect child processes to terminate which
       // will store results to the cache and will terminate this process
     });