diff --git a/tests/stty/Makefile.am b/tests/stty/Makefile.am
index 9a2486414..3161bc923 100644
--- a/tests/stty/Makefile.am
+++ b/tests/stty/Makefile.am
@@ -3,4 +3,4 @@ AUTOMAKE_OPTIONS = 1.2f gnits
 
 TESTS = row-col-1 basic-1
 EXTRA_DIST = $(TESTS)
-TESTS_ENVIRONMENT = STTY=../../src/stty
+TESTS_ENVIRONMENT = PATH=../../src:$$PATH