diff --git a/ChangeLog b/ChangeLog
index 8310985..1d0e3f6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -20,6 +20,7 @@
      in X.509 module. Fixes #2212.
    * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
      Fixes #2190.
+   * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
 
 = mbed TLS 2.16.0 branch released 2018-12-21
 
diff --git a/programs/pkey/rsa_sign_pss.c b/programs/pkey/rsa_sign_pss.c
index ad03a91..5131745 100644
--- a/programs/pkey/rsa_sign_pss.c
+++ b/programs/pkey/rsa_sign_pss.c
@@ -55,7 +55,6 @@
 #include "mbedtls/ctr_drbg.h"
 #include "mbedtls/md.h"
 #include "mbedtls/rsa.h"
-#include "mbedtls/md.h"
 #include "mbedtls/x509.h"
 
 #include <stdio.h>