1 files changed, 3 insertions, 3 deletions

diff --git a/test/010_math_permtoindex/permtoindex_tests.c b/test/010_math_permtoindex/permtoindex_tests.c
index ff61945..f246ef3 100644
--- a/test/010_math_permtoindex/permtoindex_tests.c
+++ b/test/010_math_permtoindex/permtoindex_tests.c
@@ -1,11 +1,11 @@
 #include "../test.h"
 
-int64_t permtoindex(size_t n, const uint8_t [n]);
+uint64_t permtoindex(size_t n, const uint8_t [n]);
 
 void run(void) {
         char str[STRLENMAX];
         uint8_t a[100];
-        int64_t n, i, p;
+        uint64_t n, i, p;
 
         fgets(str, STRLENMAX, stdin);
         n = atoll(str);
@@ -15,5 +15,5 @@ void run(void) {
         }
 
         p = permtoindex(n, a);
-        printf("%" PRId64 "\n", p);
+        printf("%" PRIu64 "\n", p);
 }