diff --git a/tests/lscolors_test.py b/tests/lscolors_test.py
index 0b52ea3..53df230 100755
--- a/tests/lscolors_test.py
+++ b/tests/lscolors_test.py
@@ -245,9 +245,8 @@ def test_against_ls(root_path, environment):
     process = subprocess.run(
         ["ls", "--color=always", "-R", root_path],
         stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=environment)
-    stdout, stderr = process.communicate()
     color_codes = lscolors.get_color_codes(environment)
-    for line in stdout.splitlines():
+    for line in process.stdout.splitlines():
         line = line.strip()
         if line == "":
             continue
diff --git a/vigil/tools.py b/vigil/tools.py
index 7fc45c8..55cb511 100644
--- a/vigil/tools.py
+++ b/vigil/tools.py
@@ -109,14 +109,15 @@ def _fix_input(input_):
 def _do_command(command, timeout=None, **kwargs):
     stdout, stderr = "", ""
     with contextlib.suppress(subprocess.CalledProcessError):
-        process = subprocess.run(command, stdout=subprocess.PIPE,
-                                 stderr=subprocess.PIPE, **kwargs)
         try:
-            stdout, stderr = process.communicate(timeout=timeout)
+            process = subprocess.run(command, stdout=subprocess.PIPE,
+                                     stderr=subprocess.PIPE, timeout=timeout,
+                                     **kwargs)
         except subprocess.TimeoutExpired:
             process.kill()
             raise
-    return _fix_input(stdout), _fix_input(stderr), process.returncode
+    return (_fix_input(process.stdout), _fix_input(process.stderr),
+            process.returncode)
 
 
 def _run_command(command, success_status=None, error_status=None):
@@ -126,8 +127,7 @@ def _run_command(command, success_status=None, error_status=None):
     try:
         process = subprocess.run(command, stdout=subprocess.PIPE,
                                  stderr=subprocess.PIPE)
-        stdout, stderr = process.communicate()
-        output = stdout + stderr
+        output = process.stdout + process.stderr
     except subprocess.CalledProcessError:
         status = error_status
     if process.returncode != 0: