1 files changed, 1 insertions, 0 deletions
diff --git a/actor.cpp b/actor.cpp
index 0acfb74498..4fafb39135 100644
--- a/actor.cpp
+++ b/actor.cpp
@@ -971,6 +971,7 @@ void Scumm::actorTalk() {
 
 	_msgPtrToAdd = charset._buffer;
 	_messagePtr = addMessageToStack(_messagePtr);
+	assert(_msgPtrToAdd - charset._buffer < sizeof(charset._buffer));
 	
 	if (_actorToPrintStrFor==0xFF) {
 		if (!_keepText)