diff --git a/ChangeLog b/ChangeLog
index 7fce51065f..6aa8786112 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2017-09-08  Markus Trippelsdorf  <markus@trippelsdorf.de>
+
+	* sysdeps/x86_64/fpu/libm-test-ulps: Update for AMD Ryzen.
+
 2017-09-08  Steve Ellcey  <sellcey@cavium.com>
 
 	* manual/tunables.texi (glibc.tune.cpu): Add thunderx2t99 and
diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps
index fe83b8b1c8..baa7ed8a5a 100644
--- a/sysdeps/x86_64/fpu/libm-test-ulps
+++ b/sysdeps/x86_64/fpu/libm-test-ulps
@@ -1733,10 +1733,10 @@ ldouble: 3
 
 Function: Imaginary part of "ctan_upward":
 double: 2
-float: 1
+float: 2
 float128: 5
 idouble: 2
-ifloat: 1
+ifloat: 2
 ifloat128: 5
 ildouble: 3
 ldouble: 3