diff --git a/.gitignore b/.gitignore
index 0716c03d..2fc71f6a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .packages
 .pub
+.dart_tool
 packages
 /pubspec.lock
 build/
diff --git a/lib/src/task_process.dart b/lib/src/task_process.dart
index 76df7694..6f5a677e 100644
--- a/lib/src/task_process.dart
+++ b/lib/src/task_process.dart
@@ -77,7 +77,7 @@ class TaskProcess {
     pids = pids ?? [_process.pid];
     String executable = 'pgrep';
     List<TaskProcess> pgreps = [];
-    var args = [];
+    List<String> args = [];
     List<int> cpids = [];
     for (int pid in pids) {
       args = [];