diff --git a/source/containers.tex b/source/containers.tex
index 436926f301..2a04fa0ef2 100644
--- a/source/containers.tex
+++ b/source/containers.tex
@@ -8835,7 +8835,7 @@
 \effects
 If \tcode{addressof(x) == this} is \tcode{true},
 the behavior is erroneous and there are no effects.
-If an exceptions is thrown,
+If an exception is thrown,
 there are no effects.
 Otherwise, inserts the contents of \tcode{x} into \tcode{*this} and
 \tcode{x} becomes empty.