diff --git a/src/config.rs b/src/config.rs
index c84331e..e9c095a 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -307,7 +307,6 @@ impl Config {
             ("imperative", "Rule: use the imperative mood in the description (e.g. \"Fix bug\" instead of \"Fixed bug\")."),
             ("whitespace", "Rule: disallow leading/trailing whitespace and consecutive spaces."),
             ("description_case", "Rule: commit description must start with the specified case. Options: \"any\", \"lower\", \"upper\"."),
-            ("capitalize_description", "Rule: capitalize the first letter of commit descriptions."),
             ("no_period", "Rule: do not end commit header with a period."),
             ("max_header_length", "Rule: limit the header to the specified length. A value of 0 disables this rule."),
             ("max_body_length", "Rule: wrap the body at the specified length. A value of 0 disables this rule."),
diff --git a/website/docs/examples.md b/website/docs/examples.md
index 35dbeac..c1c6a5c 100644
--- a/website/docs/examples.md
+++ b/website/docs/examples.md
@@ -14,8 +14,8 @@ To follow his advice, you can use the following configuration:
 # Process each non-empty line in the commit message as an individual commit.
 split_lines = false
 
-# Rule: capitalize the first letter of commit descriptions.
-capitalize_description = true
+# Rule: commit description must start with the specified case. Options: "any", "lower", "upper".
+description_case = "upper"
 
 # Rule: use the imperative mood in the description (e.g. "Fix bug" instead of "Fixed bug").
 imperative = true
diff --git a/website/docs/usage.md b/website/docs/usage.md
index 5bdae70..f691794 100644
--- a/website/docs/usage.md
+++ b/website/docs/usage.md
@@ -55,8 +55,6 @@ Read the [rules documentation](/docs/rules) for more information.
         Disallow leading/trailing whitespace and consecutive spaces [env: GIT_SUMI_WHITESPACE=]
 -E, --description-case <CASE>
         Commit description must start with the selected case. Options: "lower", "upper", "any". Default: "any" [env: GIT_SUMI_DESCRIPTION_CASE=]
--D, --capitalize-description
-        Capitalize the first letter of commit descriptions [env: GIT_SUMI_CAPITALIZE_DESCRIPTION=]
 -P, --no-period
         Do not end commit header with a period [env: GIT_SUMI_NO_PERIOD=]
 -H, --max-header-length <MAX_HEADER_LENGTH>