diff --git a/check b/check
index b3b1c61..0fc50b9 100755
--- a/check
+++ b/check
@@ -60,10 +60,11 @@ then
 fi
 
 check() {
-	echo "./configure $1 --enable-debug --enable-fatal-warnings --quiet"
+	options="$1 --enable-debug --enable-slow-tests --enable-fatal-warnings --quiet"
+	echo "./configure $options"
 	echo "ENV CFLAGS=\"$CFLAGS\""
 	echo "ENV MAKEFLAGS=\"$MAKEFLAGS\""
-	( ./configure $1 --enable-debug --enable-fatal-warnings --quiet )
+	( ./configure $options )
 	make check
 	if [ $? -ne 0 ]
 	then
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 5fdf3b2..c77f7bc 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -89,13 +89,18 @@ bench_log_LDADD = $(LIB_RT) $(top_builddir)/lib/libqb.la
 if HAVE_CHECK
 EXTRA_DIST += resources.test
 
-TESTS = array.test map.test util.test rb.test log.test loop.test ipc.test resources.test
+TESTS = array.test map.test rb.test log.test loop.test ipc.test resources.test
 
 resources.log: rb.log log.log ipc.log
 
 check_PROGRAMS = array.test map.test rb.test log.test loop.test ipc.test util.test
 check_SCRIPTS = resources.test
 
+if HAVE_SLOW_TESTS
+TESTS += util.test
+check_PROGRAMS += util.test
+endif
+
 array_test_SOURCES = check_array.c $(top_builddir)/include/qb/qbarray.h
 array_test_CFLAGS = @CHECK_CFLAGS@ -I$(top_srcdir)/include
 array_test_LDADD = $(top_builddir)/lib/libqb.la $(LIB_RT) @CHECK_LIBS@