diff --git a/src/xspice/evt/evtcheck_nodes.c b/src/xspice/evt/evtcheck_nodes.c
index 80c94f6ad..2983d3b1a 100644
--- a/src/xspice/evt/evtcheck_nodes.c
+++ b/src/xspice/evt/evtcheck_nodes.c
@@ -187,10 +187,15 @@ static struct card *expand_deck(struct card *head)
     struct card  *card, *next;
     char        **pointers;
     int           i, dico;
+    bool          save_debug;
 
-    /* Save the current parameter symbol table. */
+    /* Save the current parameter symbol table and debug global.
+     * Prevent overwriting of debug output in inp_readall().
+     */
 
     dico = nupa_add_dicoslist();
+    save_debug = ft_ngdebug;
+    ft_ngdebug = FALSE;
 
     /* Count the cards, allocate and fill a pointer array. */
 
@@ -213,6 +218,7 @@ static struct card *expand_deck(struct card *head)
     circarray = pointers;
     card = inp_readall(NULL, Infile_Path, FALSE, TRUE, NULL);
     card = inp_subcktexpand(card);
+    ft_ngdebug = save_debug;
 
     /* Destroy the parameter table that was created in subcircuit/parameter
      * expansion and restore the previous version.