diff --git a/tests/Makefile.am b/tests/Makefile.am
index 511e880..3a52c81 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -8,7 +8,7 @@ TESTS                       = check_tree
 # noinst_PROGRAMS             = $(TESTS)
 check_PROGRAMS = $(TESTS)
 check_tree_SOURCES = check_tree.c
-check_tree_LDADD=$(DEPS_LIBS) -L$(top_builddir)/src -lcheck -lr3
+check_tree_LDADD=$(DEPS_LIBS) -L$(top_builddir)/src -lr3 @CHECK_LIBS@
 check_tree_CFLAGS=$(DEPS_CFLAGS) -I$(top_builddir) -I$(top_builddir)/include @CHECK_CFLAGS@
 # AM_CFLAGS=$(DEPS_CFLAGS) -I$(top_builddir)/include
 # AM_CFLAGS=$(DEPS_CFLAGS) -I$(top_builddir) -I$(top_builddir)/include
diff --git a/tests/bench_str.csv b/tests/bench_str.csv
index 4a47ea1..b776393 100644
--- a/tests/bench_str.csv
+++ b/tests/bench_str.csv
@@ -50,3 +50,5 @@
 1400279249,6306920.57
 1400282602,11775983.90
 1400282802,11627473.22
+1400282839,10222898.61
+1400282930,11960583.69