diff --git a/Makefile.am b/Makefile.am
index 3429a15..bdcf044 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -36,4 +36,4 @@ EXTRA_DIST =		\
   pre-inst-env.in
 
 check: $(GOBJECTS) $(TESTS_GOBJECTS)
-	find tests -name "*.scm" | xargs -t -L1 ./test-env guile
+	find tests -maxdepth 1 -name "*.scm" | xargs -t -L1 ./test-env guile