diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index d718a9dddbd..f2d08cb08a7 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2019-07-19  François Dumont  <fdumont@gcc.gnu.org>
+
+	* include/bits/stl_tempbuf.h (__detail::__return_temporary_buffer): Fix
+	sized deallocation size computation.
+
 2019-07-19  Andreas Schwab  <schwab@linux-m68k.org>
 
 	* config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
diff --git a/libstdc++-v3/include/bits/stl_tempbuf.h b/libstdc++-v3/include/bits/stl_tempbuf.h
index d746945a8f5..c7d58a194c8 100644
--- a/libstdc++-v3/include/bits/stl_tempbuf.h
+++ b/libstdc++-v3/include/bits/stl_tempbuf.h
@@ -71,7 +71,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 				size_t __len __attribute__((__unused__)))
       {
 #if __cpp_sized_deallocation
-	::operator delete(__p, __len);
+	::operator delete(__p, __len * sizeof(_Tp));
 #else
 	::operator delete(__p);
 #endif