Index: ext/fts5/fts5_index.c
==================================================================
--- ext/fts5/fts5_index.c
+++ ext/fts5/fts5_index.c
@@ -5359,11 +5359,11 @@
     int nDoclist;
 
     memset(&term, 0, sizeof(Fts5Buffer));
 
     if( n<4 ){
-      sqlite3Fts5BufferSet(&rc, &s, 8, (const u8*)"corrupt");
+      sqlite3Fts5BufferSet(&rc, &s, 7, (const u8*)"corrupt");
       goto decode_out;
     }else{
       iRowidOff = fts5GetU16(&a[0]);
       iPgidxOff = szLeaf = fts5GetU16(&a[2]);
       if( iPgidxOff<n ){