diff --git a/steps/flex-2.5.11/pass1.sh b/steps/flex-2.5.11/pass1.sh
index 4870562c..e19e9db0 100755
--- a/steps/flex-2.5.11/pass1.sh
+++ b/steps/flex-2.5.11/pass1.sh
@@ -7,6 +7,8 @@
 src_prepare() {
     default
 
+    rm -r to.do
+
     touch config.h
 }