diff --git a/changelogs/fragments/516-whitespace-exos-config-defaults.yaml b/changelogs/fragments/516-whitespace-exos-config-defaults.yaml
new file mode 100644
index 00000000..ee67b036
--- /dev/null
+++ b/changelogs/fragments/516-whitespace-exos-config-defaults.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+  - "exos_config - missing whitespace in command with ``defaults: True``. It happened because the command is ``show configurationdetail`` instead of ``show configuration detail`` (https://github.com/ansible-collections/community.network/pull/516)."
\ No newline at end of file
diff --git a/plugins/modules/network/exos/exos_config.py b/plugins/modules/network/exos/exos_config.py
index ca6a3ca9..ad589f61 100644
--- a/plugins/modules/network/exos/exos_config.py
+++ b/plugins/modules/network/exos/exos_config.py
@@ -323,7 +323,7 @@ def main():
         result['warnings'] = warnings
 
     config = None
-    flags = ['detail'] if module.params['defaults'] else []
+    flags = [' detail'] if module.params['defaults'] else []
     diff_ignore_lines = module.params['diff_ignore_lines']
 
     if module.params['backup'] or (module._diff and module.params['diff_against'] == 'running'):