diff --git a/util_lib/elf_info.c b/util_lib/elf_info.c
index 7ca9870..8f84f52 100644
--- a/util_lib/elf_info.c
+++ b/util_lib/elf_info.c
@@ -890,7 +890,7 @@
 					handler(out_buf, len);
 				fprintf(stderr, "Cycle when parsing dmesg detected.\n");
 				fprintf(stderr, "The prink log_buf is most likely corrupted.\n");
-				fprintf(stderr, "log_buf = 0x%lx, idx = 0x%x\n",
+				fprintf(stderr, "log_buf = 0x%llx, idx = 0x%x\n",
 					log_buf, current_idx);
 				exit(68);
 			}
@@ -904,7 +904,7 @@
 					handler(out_buf, len);
 				fprintf(stderr, "Index outside log_buf detected.\n");
 				fprintf(stderr, "The prink log_buf is most likely corrupted.\n");
-				fprintf(stderr, "log_buf = 0x%lx, idx = 0x%x\n",
+				fprintf(stderr, "log_buf = 0x%llx, idx = 0x%x\n",
 					log_buf, current_idx);
 				exit(69);
 			}