diff --git a/ChangeLog.d/safer-ct.txt b/ChangeLog.d/safer-ct.txt
index 965472845..b32d78b16 100644
--- a/ChangeLog.d/safer-ct.txt
+++ b/ChangeLog.d/safer-ct.txt
@@ -2,5 +2,5 @@ Security
    * Updates to constant time C code so that compilers are less likely to use
      conditional instructions (Clang was observed to use these). Conditional
      instructions might have an observable difference in timing. Introduce
-     assembly implementations for 32 and 64-bit Arm which are guaranteed not
-     to use conditional instructions.
+     assembly implementations for 32 and 64-bit Arm and for x86 and x86-64,
+     which are guaranteed not to use conditional instructions.