diff --git a/source/exec.tex b/source/exec.tex
index fc16b5d89c..69448fd739 100644
--- a/source/exec.tex
+++ b/source/exec.tex
@@ -1948,7 +1948,7 @@
 
   template<class Sndr>
     concept @\deflibconcept{sender}@ =
-      bool(@\exposconcept{enable-sender}@<remove_cvref_t<Sndr>>) &&
+      @\exposconcept{enable-sender}@<remove_cvref_t<Sndr>> &&
       requires (const remove_cvref_t<Sndr>& sndr) {
         { get_env(sndr) } -> @\exposconcept{queryable}@;
       } &&