diff --git a/gdb/expprint.c b/gdb/expprint.c
index a873cf8df74..49d840be9c6 100644
--- a/gdb/expprint.c
+++ b/gdb/expprint.c
@@ -68,7 +68,7 @@ void
 ATTRIBUTE_USED
 debug_exp (struct expression *exp)
 {
-  exp->op->dump (gdb_stdlog, 0);
+  exp->dump (gdb_stdlog);
   gdb_flush (gdb_stdlog);
 }