diff --git a/tests/chgrp/Makefile.am b/tests/chgrp/Makefile.am
index 5b0ecd8ea..c902f68fd 100644
--- a/tests/chgrp/Makefile.am
+++ b/tests/chgrp/Makefile.am
@@ -4,4 +4,4 @@ AUTOMAKE_OPTIONS = 1.4 gnits
 TESTS = basic deref recurse
 EXTRA_DIST = $(TESTS)
 TESTS_ENVIRONMENT = \
-  PATH=`pwd`/../../src:$$PATH
+  PATH="`pwd`/../../src@PATH_SEPARATOR@$$PATH"