only include tommath_private.h
diff --git a/etc/pprime.c b/etc/pprime.c
index fe32a30..1d59cab 100644
--- a/etc/pprime.c
+++ b/etc/pprime.c
@@ -6,8 +6,7 @@
*/
#include <stdlib.h>
#include <time.h>
-#include "tommath.h"
-#include "tommath_private.h" /* mp_word */
+#include "tommath_private.h"
static int n_prime;
static FILE *primes;