diff --git a/6502/C64/tests/run-vf-tests.fth b/6502/C64/tests/run-vf-tests.fth
index 6eb98f8..303f061 100644
--- a/6502/C64/tests/run-vf-tests.fth
+++ b/6502/C64/tests/run-vf-tests.fth
@@ -5,6 +5,6 @@ include ans-shim.fth
 
 include tester.fth
 
-1 verbose !
+\ 1 verbose !
 
 include core.fr