diff --git a/float.cpp b/float.cpp
index beb29c65..3b8e2af7 100644
--- a/float.cpp
+++ b/float.cpp
@@ -97,7 +97,7 @@ bool
 ieee_float<E, S>::almost_equal (floating_t a,
                                 floating_t b)
 {
-    return almost_equal (a, b, 100u);
+    return almost_equal (a, b, 128u);
 }