diff --git a/src/parser/element_parser.rs b/src/parser/element_parser.rs
index 3535b0c..92b1089 100644
--- a/src/parser/element_parser.rs
+++ b/src/parser/element_parser.rs
@@ -209,6 +209,7 @@ fn _element<'b, 'g, 'r, 's>(
         Element::BabelCall
     );
 
+    // Keyword with affiliated keywords
     ak_element!(
         keyword,
         &mut affiliated_keywords,
@@ -218,6 +219,16 @@ fn _element<'b, 'g, 'r, 's>(
         Element::Keyword
     );
 
+    // Keyword without affiliated keywords
+    ak_element!(
+        keyword,
+        std::iter::empty(),
+        input,
+        context,
+        input,
+        Element::Keyword
+    );
+
     if can_be_paragraph {
         // Paragraph with affiliated keyword
         ak_element!(