diff --git a/ChangeLog.d/iar-alignment-fix.txt b/ChangeLog.d/iar-alignment-fix.txt
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+Bugfix
+   * Fix a problem in library/alignment.h where the Zephyr Project use
+     a pre-defined macro '__packed' which collides with the IAR keyword
+     '__packed', causing the typedefs of unaligned types to remain aligned.
+     Fixes mbedtls issue #10334
+