diff --git a/tests/vg_regtest.in b/tests/vg_regtest.in
index 688b698..e9b2a94 100755
--- a/tests/vg_regtest.in
+++ b/tests/vg_regtest.in
@@ -1,4 +1,4 @@
-#! /usr/bin/perl -w
+#! @PERL@ -w
 ##--------------------------------------------------------------------##
 ##--- Valgrind regression testing script                vg_regtest ---##
 ##--------------------------------------------------------------------##