kc3-lang/kc3

diff --git a/libc3/facts.c b/libc3/facts.c
index 35a98b9..531f845 100644
--- a/libc3/facts.c
+++ b/libc3/facts.c
@@ -260,15 +260,15 @@ sw facts_load (s_facts *facts, s_buf *buf)
   return -1;
  ko_fact:
   if (r)
-    warnx("facts_load: invalid fact line %llu", i + 3);
+    warnx("facts_load: invalid fact line %lu", (unsigned long) i + 3);
   else
-    warnx("facts_load: missing fact line %llu", i + 3);
+    warnx("facts_load: missing fact line %lu", (unsigned long) i + 3);
   return -1;
  ko_hash:
   if (r)
-    warnx("facts_load: invalid hash line %llu", i + 3);
+    warnx("facts_load: invalid hash line %lu", (unsigned long) i + 3);
   else
-    warnx("facts_load: missing hash line %llu", i + 3);
+    warnx("facts_load: missing hash line %lu", (unsigned long) i + 3);
   return -1;
 }