diff --git a/waterbox/picodrive/bizhawk.c b/waterbox/picodrive/bizhawk.c
index ea384c5863..86970d5893 100644
--- a/waterbox/picodrive/bizhawk.c
+++ b/waterbox/picodrive/bizhawk.c
@@ -19,6 +19,7 @@ void lprintf(const char *fmt, ...)
 int PicoCartResize(int newsize)
 {
 	// TODO: change boards that use this to store their extra data elsewhere
+	abort();
 	return -1;
 }