diff --git a/testing/btest/btest.cfg b/testing/btest/btest.cfg
index 68e4b7ef57..f7cf5fdaf5 100644
--- a/testing/btest/btest.cfg
+++ b/testing/btest/btest.cfg
@@ -18,7 +18,7 @@ ZEEK_PLUGIN_PATH=
 TZ=UTC
 LC_ALL=C
 BTEST_PATH=%(testbase)s/../../auxil/btest
-PATH=%(testbase)s/../../%(build_dir)s/src:%(testbase)s/../scripts:%(testbase)s/../../auxil/btest:%(testbase)s/../../%(build_dir)s/auxil/zeek-aux/zeek-cut:%(testbase)s/../../auxil/btest/sphinx:%(default_path)s:/sbin
+PATH=%(testbase)s/../../%(build_dir)s/src%(pathsep)s%(testbase)s/../scripts%(pathsep)s%(testbase)s/../../auxil/btest%(pathsep)s%(testbase)s/../../%(build_dir)s/auxil/zeek-aux/zeek-cut%(pathsep)s%(testbase)s/../../auxil/btest/sphinx%(pathsep)s%(default_path)s%(pathsep)s/sbin
 TRACES=%(testbase)s/Traces
 FILES=%(testbase)s/Files
 SCRIPTS=%(testbase)s/../scripts