diff --git a/src/db_value.c b/src/db_value.c
index feb6c1a..a76bd33 100644
--- a/src/db_value.c
+++ b/src/db_value.c
@@ -52,10 +52,17 @@ void db_value_sbva(str_builder *sb, e_column_type type, uint32_t n_args, va_list
   int nchar;
 
   if (n_args == 0) {
+    if (type == TYPE_RAW) {
+      strbld_str(sb, "NULL", 4);
+    }
     return;
   }
 
   if (type == TYPE_RAW) {
+    if (n_args == 0) {
+      strbld_str(sb, "NULL", 4);
+      return;
+    }
     tmp_str = va_arg(args, char *);
     tmp_len = va_arg(args, size_t);
     strbld_str(sb, tmp_str, tmp_len);