diff --git a/PROTOCOL.md b/PROTOCOL.md
index bb8d3cf4..73c2aec7 100644
--- a/PROTOCOL.md
+++ b/PROTOCOL.md
@@ -249,7 +249,7 @@ struct limine_stack_size_request {
 };
 ```
 
-* `stack_size` - The requested stack size (also used for SMP processors).
+* `stack_size` - The requested stack size in bytes (also used for SMP processors).
 
 Response:
 ```c