diff --git a/ChangeLog b/ChangeLog
index 6fd5c45e4a..4766d149f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2016-05-18  Joseph Myers  <joseph@codesourcery.com>
+
+	* math/libm-test.inc: Update comment not to refer to signs of NaNs
+	not being tested.
+
 2016-05-18  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
diff --git a/math/libm-test.inc b/math/libm-test.inc
index f1ba7dda99..b0451bd62b 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -80,8 +80,7 @@
    specified in ISO C99.
 
    NaN values: There exist signalling and quiet NaNs.  This implementation
-   only uses quiet NaN as parameter.  Where the sign of a NaN is
-   significant, this is not tested.  The payload of NaNs is not examined.
+   only uses quiet NaN as parameter.  The payload of NaNs is not examined.
 
    Inline functions: Inlining functions should give an improvement in
    speed - but not in precission.  The inlined functions return