diff --git a/pkg/cli/actionlint.go b/pkg/cli/actionlint.go
index ddbbdbdbb1d..b04ca6fa180 100644
--- a/pkg/cli/actionlint.go
+++ b/pkg/cli/actionlint.go
@@ -43,7 +43,7 @@ func getActionlintDocsURL(kind string) string {
 	case "expression":
 		anchor = "check-syntax-expression"
 	case "syntax-check":
-		anchor = "check-syntax-expression"
+		anchor = "check-unexpected-keys"
 	default:
 		// For other kinds, try the standard "check-{kind}" pattern
 		if !strings.HasPrefix(anchor, "check-") {
diff --git a/pkg/cli/actionlint_test.go b/pkg/cli/actionlint_test.go
index 17a0bb9f0a3..8d61093b6c4 100644
--- a/pkg/cli/actionlint_test.go
+++ b/pkg/cli/actionlint_test.go
@@ -298,6 +298,11 @@ func TestGetActionlintDocsURL(t *testing.T) {
 			kind:     "expression",
 			expected: "https://github.com/rhysd/actionlint/blob/main/docs/checks.md#check-syntax-expression",
 		},
+		{
+			name:     "syntax-check kind",
+			kind:     "syntax-check",
+			expected: "https://github.com/rhysd/actionlint/blob/main/docs/checks.md#check-unexpected-keys",
+		},
 		{
 			name:     "generic kind with check- prefix",
 			kind:     "check-job-deps",