diff --git a/sql/pgsql/src/TPgSQLStatement.cxx b/sql/pgsql/src/TPgSQLStatement.cxx
index 7c090c4079281d8b28bca5e8df0bbb20ebcd89e5..e8c560a5955d1b519384a9f797fd5ff3a1656e30 100644
--- a/sql/pgsql/src/TPgSQLStatement.cxx
+++ b/sql/pgsql/src/TPgSQLStatement.cxx
@@ -676,7 +676,7 @@ Bool_t TPgSQLStatement::GetTimestamp(Int_t npar, Int_t& year, Int_t& month, Int_
 
 Bool_t TPgSQLStatement::SetNull(Int_t npar)
 {
-   fBind[npar][0] = 0;
+   fBind[npar] = 0;
 
    return kTRUE;
 }