diff --git a/6502/C64/cbmfiles/.gitignore b/6502/C64/cbmfiles/.gitignore
index edb5edd..fbf7330 100644
--- a/6502/C64/cbmfiles/.gitignore
+++ b/6502/C64/cbmfiles/.gitignore
@@ -1,3 +1,3 @@
 *.fth
-tester.fr
+core.fr
 notdone