diff --git a/acinclude.m4 b/acinclude.m4
index 286340d..5bfa29d 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -22,7 +22,6 @@ AC_DEFUN([COMPILER_FLAGS], [
 		with_cflags="$with_cflags -Wcast-align"
 		with_cflags="$with_cflags -DG_DISABLE_DEPRECATED"
 	fi
-
 	AC_SUBST([WARNING_CFLAGS], $with_cflags)
 ])
 
diff --git a/configure.ac b/configure.ac
index 050d30d..b6f0907 100644
--- a/configure.ac
+++ b/configure.ac
@@ -40,7 +40,7 @@ AC_ARG_ENABLE(threads, AC_HELP_STRING([--enable-threads],
 AC_CHECK_FUNC(signalfd, dummy=yes,
 			AC_MSG_ERROR(signalfd support is required))
 
-AC_CHECK_FUNC(clock_gettime, dummy=yes,
+AC_CHECK_LIB(rt, clock_gettime, dummy=yes,
 			AC_MSG_ERROR(realtime clock support is required))
 
 AC_CHECK_LIB(pthread, pthread_create, dummy=yes,