diff --git a/Documentation/features/debug/KASAN/arch-support.txt b/Documentation/features/debug/KASAN/arch-support.txt
index 76bbd7fe27b3..f377290fe48e 100644
--- a/Documentation/features/debug/KASAN/arch-support.txt
+++ b/Documentation/features/debug/KASAN/arch-support.txt
@@ -34,6 +34,6 @@
     |        tile: | TODO |
     |          um: | TODO |
     |   unicore32: | TODO |
-    |         x86: |  ok  |
+    |         x86: |  ok  | 64-bit only
     |      xtensa: | TODO |
     -----------------------