diff --git a/example/scripts/run-demo.exp b/example/scripts/run-demo.exp
index 65caf65..c9eb339 100755
--- a/example/scripts/run-demo.exp
+++ b/example/scripts/run-demo.exp
@@ -1,9 +1,13 @@
 #!/usr/bin/env expect
 spawn valgrind --leak-check=full --show-leak-kinds=all --track-origins=yes --error-exitcode=100 --verbose {*}$argv
-expect -ex "query> " {send "Jvaa\n"}
-expect -ex "query> " {send "Clojre\n"}
-expect -ex "query> " {send "Ptyhon\n"}
-expect -ex "query> " {send "\n"}
+expect -ex "query> "
+send -- "Jvaa\n"
+expect -ex "query> "
+send -- "Clojre\n"
+expect -ex "query> "
+send -- "Ptyhon\n"
+expect -ex "query> "
+send -- "\n"
 expect eof
 catch wait result
 exit [lindex $result 3]