diff --git a/src/pru/main.c b/src/pru/main.c
index 2528a223..37354d90 100644
--- a/src/pru/main.c
+++ b/src/pru/main.c
@@ -115,6 +115,9 @@ DECL_INIT(timer_init);
  * Console IO
  ****************************************************************/
 
+// Writes over 496 bytes don't fit in a single "rpmsg" page
+DECL_CONSTANT("RECEIVE_WINDOW", 496 - 1);
+
 // Process any incoming commands
 void
 console_task(void)