diff --git a/scripts/maint/run_calltool.sh b/scripts/maint/run_calltool.sh
index f36810f5b6..b0268322f4 100755
--- a/scripts/maint/run_calltool.sh
+++ b/scripts/maint/run_calltool.sh
@@ -18,7 +18,7 @@ for calculation in $SUBITEMS; do
   python -m calltool "$calculation" > callgraph/"$calculation"
 done
 
-echo <<EOF > callgraph/README
+cat <<EOF > callgraph/README
 This directory holds output from calltool, as run on Tor.  For more
 information about each of these files, see the NOTES and README files in
 the calltool distribution.