diff --git a/sdk/lib/cmlib/hivedata.h b/sdk/lib/cmlib/hivedata.h
index 1c180a6da43..39d617ccbd5 100644
--- a/sdk/lib/cmlib/hivedata.h
+++ b/sdk/lib/cmlib/hivedata.h
@@ -47,6 +47,7 @@
 //
 // Hive structure identifiers
 //
+#define HV_HHIVE_SIGNATURE              0xbee0bee0
 #define HV_HBLOCK_SIGNATURE             0x66676572  // "regf"
 #define HV_HBIN_SIGNATURE               0x6e696268  // "hbin"
 
diff --git a/sdk/lib/cmlib/hiveinit.c b/sdk/lib/cmlib/hiveinit.c
index 297ae360374..fcbbe08961c 100644
--- a/sdk/lib/cmlib/hiveinit.c
+++ b/sdk/lib/cmlib/hiveinit.c
@@ -542,6 +542,7 @@ HvInitialize(
      */
 
     RtlZeroMemory(Hive, sizeof(HHIVE));
+    Hive->Signature = HV_HHIVE_SIGNATURE;
 
     Hive->Allocate = Allocate;
     Hive->Free = Free;