diff --git a/Modules/_remote_debugging/threads.c b/Modules/_remote_debugging/threads.c
index a38bb945169a77..07f8148d7c941a 100644
--- a/Modules/_remote_debugging/threads.c
+++ b/Modules/_remote_debugging/threads.c
@@ -192,7 +192,7 @@ get_thread_status(RemoteUnwinderObject *unwinder, uint64_t tid, uint64_t pthread
     char stat_path[256];
     char buffer[2048] = "";
 
-    snprintf(stat_path, sizeof(stat_path), "/proc/%d/task/%lu/stat", unwinder->handle.pid, tid);
+    snprintf(stat_path, sizeof(stat_path), "/proc/%d/task/%" PRIu64 "/stat", unwinder->handle.pid, tid);
 
     int fd = open(stat_path, O_RDONLY);
     if (fd == -1) {