Index: ext/fts3/fts3_snippet.c
==================================================================
--- ext/fts3/fts3_snippet.c
+++ ext/fts3/fts3_snippet.c
@@ -102,11 +102,11 @@
 struct MatchinfoBuffer {
   u8 aRef[3];
   int nElem;
   int bGlobal;                    /* Set if global data is loaded */
   char *zMatchinfo;
-  u32 aMatchinfo[0];
+  u32 aMatchinfo[1];
 };
 
 
 /*
 ** The snippet() and offsets() functions both return text values. An instance
@@ -128,11 +128,11 @@
 /*
 ** Allocate a two-slot MatchinfoBuffer object.
 */
 static MatchinfoBuffer *fts3MIBufferNew(int nElem, const char *zMatchinfo){
   MatchinfoBuffer *pRet;
-  int nByte = sizeof(u32) * (2*nElem + 2) + sizeof(MatchinfoBuffer);
+  int nByte = sizeof(u32) * (2*nElem + 1) + sizeof(MatchinfoBuffer);
   int nStr = (int)strlen(zMatchinfo);
 
   pRet = sqlite3_malloc(nByte + nStr+1);
   if( pRet ){
     memset(pRet, 0, nByte);