diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index bf9e08d1d8..95010fc612 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2017-06-22  Sergio Durigan Junior  <sergiodj@redhat.com>
+
+	* common/environ.c (gdb_environ::unset): Update comment.
+
 2017-06-22  Alan Hayward  <alan.hayward@arm.com>
 
 	* python/py-unwind.c (pyuw_sniffer): Allocate space for
diff --git a/gdb/common/environ.c b/gdb/common/environ.c
index 2d1395719b..698bda3ac1 100644
--- a/gdb/common/environ.c
+++ b/gdb/common/environ.c
@@ -114,7 +114,7 @@ gdb_environ::unset (const char *var)
 {
   size_t len = strlen (var);
 
-  /* We iterate until '.cend () - 1' because the last element is
+  /* We iterate until '.end () - 1' because the last element is
      always NULL.  */
   for (std::vector<char *>::iterator el = m_environ_vector.begin ();
        el != m_environ_vector.end () - 1;