diff --git a/changelogs/fragments/52034-fix-traceback-on_ansible-doc_-all.yaml b/changelogs/fragments/52034-fix-traceback-on_ansible-doc_-all.yaml
new file mode 100644
index 00000000000..e50d51e4f2a
--- /dev/null
+++ b/changelogs/fragments/52034-fix-traceback-on_ansible-doc_-all.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+  - ansible-doc - Fix traceback on providing arguemnt --all to ansible-doc command
diff --git a/lib/ansible/cli/doc.py b/lib/ansible/cli/doc.py
index f9babca60ef..e9ecfc1df7c 100644
--- a/lib/ansible/cli/doc.py
+++ b/lib/ansible/cli/doc.py
@@ -117,7 +117,7 @@ class DocCLI(CLI):
 
         # process all plugins of type
         if self.options.all_plugins:
-            self.args = self.get_all_plugins_of_type(plugin_type, loader)
+            self.args = self.get_all_plugins_of_type(plugin_type)
 
         # dump plugin metadata as JSON
         if self.options.json_dump:
diff --git a/test/units/cli/test_doc.py b/test/units/cli/test_doc.py
new file mode 100644
index 00000000000..eb117dc56d9
--- /dev/null
+++ b/test/units/cli/test_doc.py
@@ -0,0 +1,12 @@
+# Copyright: (c) 2019, Ansible Project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from ansible.cli.doc import DocCLI
+
+
+def test_parsing_all_option():
+    doc_cli = DocCLI(['/n/ansible-doc', '-a'])
+    doc_cli.parse()