Index: ext/misc/scrub.c
==================================================================
--- ext/misc/scrub.c
+++ ext/misc/scrub.c
@@ -72,10 +72,11 @@
   sqlite3 *dbDest;         /* Destination database connection */
   sqlite3_file *pDest;     /* Destination file handle */
   u32 szPage;              /* Page size */
   u32 szUsable;            /* Usable bytes on each page */
   u32 nPage;               /* Number of pages */
+  u32 iLastPage;           /* Page number of last page written so far*/
   u8 *page1;               /* Content of page 1 */
 };
 
 /* Store an error message */
 static void scrubBackupErr(ScrubState *p, const char *zFormat, ...){
@@ -128,10 +129,11 @@
   rc = p->pDest->pMethods->xWrite(p->pDest, pData, p->szPage, iOff);
   if( rc!=SQLITE_OK ){
     scrubBackupErr(p, "write failed for page %d", pgno);
     p->rcErr = SQLITE_IOERR;
   }
+  if( pgno>p->iLastPage ) p->iLastPage = pgno;
 }
 
 /* Prepare a statement against the "db" database. */
 static sqlite3_stmt *scrubBackupPrepare(
   ScrubState *p,      /* Backup context */
@@ -538,10 +540,24 @@
   while( sqlite3_step(pStmt)==SQLITE_ROW ){
     i = (u32)sqlite3_column_int(pStmt, 0);
     scrubBackupBtree(&s, i, 0);
   }
   sqlite3_finalize(pStmt);
+
+  /* If the last page of the input db file is a free-list leaf, then the
+  ** backup file on disk is still smaller than the size indicated within 
+  ** the database header. In this case, write a page of zeroes to the 
+  ** last page of the backup database so that SQLite does not mistakenly
+  ** think the db is corrupt.  */
+  if( s.iLastPage<s.nPage ){
+    u8 *aZero = scrubBackupAllocPage(&s);
+    if( aZero ){
+      memset(aZero, 0, s.szPage);
+      scrubBackupWrite(&s, s.nPage, aZero);
+      sqlite3_free(aZero);
+    }
+  }
 
 scrub_abort:    
   /* Close the destination database without closing the transaction. If we
   ** commit, page zero will be overwritten. */
   sqlite3_close(s.dbDest);