diff --git a/src/boards/235.c b/src/boards/235.c
index f7d428a..e065a88 100644
--- a/src/boards/235.c
+++ b/src/boards/235.c
@@ -77,7 +77,7 @@ static DECLFW(M235Write) {
 
 static void M235Close(void) {
 	if (CHRRAM)
-		free(CHRRAM);
+		FCEU_free(CHRRAM);
 	CHRRAM = NULL;
 }