diff --git a/ChangeLog.d/unistd.txt b/ChangeLog.d/unistd.txt
index d2e4d4301a..84afdc315f 100644
--- a/ChangeLog.d/unistd.txt
+++ b/ChangeLog.d/unistd.txt
@@ -1,3 +1,6 @@
 Changes
    * Tweak the detection of Unix-like platforms, which makes more system
      interfaces (timing, threading) available on Haiku, QNX and Midipix.
+
+Bugfix
+   * Fix a build failure with dietlibc.