diff --git a/configure.ac b/configure.ac
index abe43aa1adeaac9d184be49ca98eb617d0c89573..334bab0855df0e2728f20c70a9b35aa0311fdbca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -608,7 +608,7 @@ AH_BOTTOM(
 
 old_LIBS="$LIBS"
 AC_SEARCH_LIBS(clock_gettime, rt, [
-  AC_DEFINE([HAVE_CLOCK_GETTIME],1,[Define to 1 if you have the `clock_gettime' function])])
+  AC_DEFINE([HAVE_CLOCK_GETTIME],1,[Define if clock_gettime is available])])
 BENCH_LIBS="$LIBS"
 LIBS="$old_LIBS"