Index: src/wal.c
==================================================================
--- src/wal.c
+++ src/wal.c
@@ -706,10 +706,12 @@
     walChecksumBytes(nativeCksum, aFrame, 8, aCksum, aCksum);
     walChecksumBytes(nativeCksum, aData, pWal->szPage, aCksum, aCksum);
 
     sqlite3Put4byte(&aFrame[16], aCksum[0]);
     sqlite3Put4byte(&aFrame[20], aCksum[1]);
+  }else{
+    memset(&aFrame[8], 0, 16);
   }
 }
 
 /*
 ** Check to see if the frame with header in aFrame[] and content