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-rw-r--r--src/printf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/printf.c b/src/printf.c
index 71363f91b..97f93dc15 100644
--- a/src/printf.c
+++ b/src/printf.c
@@ -1057,7 +1057,7 @@ void sqlite3_str_appendall(sqlite3_str *p, const char *z){
static SQLITE_NOINLINE char *strAccumFinishRealloc(StrAccum *p){
char *zText;
assert( p->mxAlloc>0 && !isMalloced(p) );
- zText = sqlite3DbMallocRaw(p->db, p->nChar+1 );
+ zText = sqlite3DbMallocRaw(p->db, 1+(u64)p->nChar );
if( zText ){
memcpy(zText, p->zText, p->nChar+1);
p->printfFlags |= SQLITE_PRINTF_MALLOCED;