diff --git a/s/runtests b/s/runtests
index f62d410a5..429f8ef03 100755
--- a/s/runtests
+++ b/s/runtests
@@ -1,6 +1,6 @@
 #!/bin/bash
 set -e
-eval ($luarocks path)
+eval $(luarocks path)
 ROOT=$(git rev-parse --show-toplevel)
 [ -z $BUILD ] && BUILD=Debug ; export BUILD