diff --git a/configure.ac b/configure.ac
index acae553..97721a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ AC_CHECK_LIB([cryb-test], [t_add_tests])
 LIBCRYB_TEST="${LIBS}"
 LIBS="${save_LIBS}"
 AC_SUBST(LIBCRYB_TEST)
-AM_CONDITIONAL([WITH_TESTS], [test x"${LIBCRYB_TEST}" != x""])
+AM_CONDITIONAL([WITH_CRYB_TEST], [test x"${LIBCRYB_TEST}" != x""])
 
 # options
 AC_ARG_ENABLE([developer-warnings],
diff --git a/t/Makefile.am b/t/Makefile.am
index 093e283..7c1d3db 100644
--- a/t/Makefile.am
+++ b/t/Makefile.am
@@ -1,11 +1,13 @@
 AM_CPPFLAGS = -I$(top_srcdir)/lib
 LIBPSORT = $(top_builddir)/lib/libptsort.a
 
-if WITH_TESTS
+if WITH_CRYB_TEST
 
 check_PROGRAMS = t_aa
 t_aa_LDADD = $(LIBPSORT) $(LIBCRYB_TEST)
 
+endif
+
 dist_check_SCRIPTS = t_dp_red.sh
 
 ${dist_check_SCRIPTS}: t_subr.sh
@@ -15,5 +17,3 @@ EXTRA_DIST = t_dp_red.ti t_dp_red.to
 TESTS = $(check_PROGRAMS) $(dist_check_SCRIPTS)
 
 CLEANFILES = t_subr.sh
-
-endif