diff --git a/source/utilities.tex b/source/utilities.tex
index 3c4d80e1bc..8a535fd2c3 100644
--- a/source/utilities.tex
+++ b/source/utilities.tex
@@ -5869,7 +5869,7 @@
 \indexlibrarymember{operator<=>}{optional}%
 \begin{itemdecl}
 template<class T, class U>
-    requires (!@\exposconcept{is-derived-from-optional}@<U>) && @\libconcept{three_way_comparable_with}@<T, U>
+  requires (!@\exposconcept{is-derived-from-optional}@<U>) && @\libconcept{three_way_comparable_with}@<T, U>
   constexpr compare_three_way_result_t<T, U>
     operator<=>(const optional<T>& x, const U& v);
 \end{itemdecl}