diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 7a232acafab..ddf488cdf1d 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,9 @@
+2018-05-26  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR libgfortran/85840
+	* io/write.c (write_float_0): Use separate local variable for
+	the float string length.
+
 2018-05-08  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/54613