diff --git a/doc/changelog.qbk b/doc/changelog.qbk
index c509070..5b3129c 100644
--- a/doc/changelog.qbk
+++ b/doc/changelog.qbk
@@ -1,5 +1,5 @@
 [/
-              Copyright Andrey Semashev 2007 - 2018.
+              Copyright Andrey Semashev 2007 - 2019.
      Distributed under the Boost Software License, Version 1.0.
         (See accompanying file LICENSE_1_0.txt or copy at
               http://www.boost.org/LICENSE_1_0.txt)
@@ -9,6 +9,12 @@
 
 [section:changelog Changelog]
 
+[heading 2.17, Boost 1.71]
+
+[*Bug fixes:]
+
+* Fixed incorrect parsing of components of the rotated file names while scanning for files in the [link log.detailed.sink_backends.text_file text file sink backend]. If the file name pattern ended with a placeholder (for example, a file counter), the `scan_for_files` method would not find files matching that patter in the target storage, leaving them unmanaged. In particular, such files would not be deleted to free target storage. ([github_issue 78])
+
 [heading 2.16, Boost 1.70]
 
 [*New features:]
diff --git a/src/text_file_backend.cpp b/src/text_file_backend.cpp
index cef1c8d..d601255 100644
--- a/src/text_file_backend.cpp
+++ b/src/text_file_backend.cpp
@@ -390,8 +390,10 @@ BOOST_LOG_ANONYMOUS_NAMESPACE {
             {
                 for (; n > 0; --n)
                 {
+                    if (it == end)
+                        return false;
                     path_char_type c = *it++;
-                    if (!traits_t::is_digit(c) || it == end)
+                    if (!traits_t::is_digit(c))
                         return false;
                 }
                 return true;