1 files changed, 4 insertions, 1 deletions
diff --git a/src/expr.c b/src/expr.c
index c91db2834..5b134d666 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -699,7 +699,10 @@ void sqlite3ExprAssignVarNumber(Parse *pParse, Expr *pExpr){
       if( x>pParse->nzVar ){
         char **a;
         a = sqlite3DbRealloc(db, pParse->azVar, x*sizeof(a[0]));
-        if( a==0 ) return;  /* Error reported through db->mallocFailed */
+        if( a==0 ){
+          assert( db->mallocFailed ); /* Error reported through mallocFailed */
+          return;
+        }
         pParse->azVar = a;
         memset(&a[pParse->nzVar], 0, (x-pParse->nzVar)*sizeof(a[0]));
         pParse->nzVar = x;