kc3-lang/libtommath

diff --git a/etc/pprime.c b/etc/pprime.c
index 009a18c..944b5a6 100644
--- a/etc/pprime.c
+++ b/etc/pprime.c
@@ -8,6 +8,9 @@
 #include <time.h>
 #include "tommath.h"
 
+/* TODO: Remove private_mp_word as soon as deprecated mp_word is removed from tommath. */
+typedef private_mp_word mp_word;
+
 static int   n_prime;
 static FILE *primes;