diff --git a/source/declarations.tex b/source/declarations.tex
index be7d23d077..fcf0403079 100644
--- a/source/declarations.tex
+++ b/source/declarations.tex
@@ -5906,6 +5906,8 @@
 a (possibly cv-qualified) class type that is
 incomplete or abstract within the function body
 unless the function is deleted\iref{dcl.fct.def.delete}.
+The optional \grammarterm{requires-clause} shall only be present
+in the definition of a templated function.
 
 \pnum
 \begin{example}