diff --git a/bip-0009.mediawiki b/bip-0009.mediawiki
index 8941247a..995ae85a 100644
--- a/bip-0009.mediawiki
+++ b/bip-0009.mediawiki
@@ -120,7 +120,7 @@ Note that a block's state never depends on its own nVersion; only on that of its
             walk = block;
             for (i = 0; i < 2016; i++) {
                 walk = walk.parent;
-                if (walk.nVersion & 0xE0000000 == 0x2000000 && (walk.nVersion >> bit) & 1 == 1) {
+                if (walk.nVersion & 0xE0000000 == 0x20000000 && (walk.nVersion >> bit) & 1 == 1) {
                     count++;
                 }
             }