1 files changed, 1 insertions, 0 deletions
diff --git a/tests/tsort/basic-1 b/tests/tsort/basic-1
index 81297d11c..ce73e4772 100755
--- a/tests/tsort/basic-1
+++ b/tests/tsort/basic-1
@@ -1,4 +1,5 @@
 #!/bin/sh
+# -*- perl -*-
 
 : ${PERL=perl}
 : ${srcdir=.}