diff --git a/package/ltp-testsuite/ltp-testsuite.mk b/package/ltp-testsuite/ltp-testsuite.mk
index acc1640c43..48733f2ac9 100644
--- a/package/ltp-testsuite/ltp-testsuite.mk
+++ b/package/ltp-testsuite/ltp-testsuite.mk
@@ -9,6 +9,8 @@ LTP_TESTSUITE_SOURCE = ltp-full-$(LTP_TESTSUITE_VERSION).tar.xz
 LTP_TESTSUITE_SITE = http://downloads.sourceforge.net/project/ltp/LTP%20Source/ltp-$(LTP_TESTSUITE_VERSION)
 LTP_TESTSUITE_LICENSE = GPLv2 GPLv2+
 LTP_TESTSUITE_LICENSE_FILES = COPYING
+LTP_TESTSUITE_CONF_OPTS += \
+			   --with-realtime-testsuite
 
 # Needs libcap with file attrs which needs attr, so both required
 ifeq ($(BR2_PACKAGE_LIBCAP)$(BR2_PACKAGE_ATTR),yy)