diff --git a/payload_consumer/payload_constants.cc b/payload_consumer/payload_constants.cc
index 6078a74..60b857e 100644
--- a/payload_consumer/payload_constants.cc
+++ b/payload_consumer/payload_constants.cc
@@ -40,6 +40,8 @@
 const char kCompatibleZlibFingerprint[][65] = {
     "ea973605ccbbdb24f59f449c5f65861a1a9bc7a4353377aaaa06cb3e0f1cfbd7",
     "3747fa404cceb00a5ec3606fc779510aaa784d5864ab1d5c28b9e267c40aad5c",
+    // zlib 1.2.11
+    "61514794a2985bee78135fd67a2f1fd18e56f3c3e410fbc4552a0e05a701e47a",
 };
 
 const char* InstallOperationTypeName(InstallOperation_Type op_type) {
diff --git a/payload_consumer/payload_constants.h b/payload_consumer/payload_constants.h
index 2dbc5fa..7509ed2 100644
--- a/payload_consumer/payload_constants.h
+++ b/payload_consumer/payload_constants.h
@@ -63,7 +63,7 @@
 // carefully and determine if it's still compatible with previous version, if
 // yes then add the new fingerprint to this array, otherwise remove all previous
 // fingerprints in the array first, and only include the new fingerprint.
-extern const char kCompatibleZlibFingerprint[2][65];
+extern const char kCompatibleZlibFingerprint[3][65];
 
 // A block number denoting a hole on a sparse file. Used on Extents to refer to
 // section of blocks not present on disk on a sparse file.