--- a/dived.c
+++ b/dived.c
@@ -1577,7 +1577,7 @@
                         fprintf(stderr, "Invalid --rlimit value \"%s\"\n", q);
                         return 4;
                     } else {
-                        if(sscanf(limit_hard, "%ld", &r->limits.rlim_max) != 1) {
+                        if(sscanf(limit_hard, "%llu", &r->limits.rlim_max) != 1) {
                             fprintf(stderr, "\"%s\" is not a number in --rlimit %s\n", limit_hard, q);
                             return 4;
                         }
@@ -1585,7 +1585,7 @@
                     if (limit_soft==NULL) {
                         r->limits.rlim_cur = r->limits.rlim_max;
                     } else {
-                        if(sscanf(limit_soft, "%ld", &r->limits.rlim_cur) != 1) {
+                        if(sscanf(limit_soft, "%llu", &r->limits.rlim_cur) != 1) {
                             fprintf(stderr, "\"%s\" is not a number in --rlimit %s\n", limit_soft, q);
                             return 4;
                         }