--- freem/src/init.c	2026/01/07 19:51:33	1.16
+++ freem/src/init.c	2026/03/14 21:04:51	1.17
@@ -1,5 +1,5 @@
 /*
- *   $Id: init.c,v 1.16 2026/01/07 19:51:33 snw Exp $
+ *   $Id: init.c,v 1.17 2026/03/14 21:04:51 snw Exp $
  *    FreeM initialization 
  *
  *  
@@ -24,6 +24,9 @@
  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
  *
  *   $Log: init.c,v $
+ *   Revision 1.17  2026/03/14 21:04:51  snw
+ *   Fix segfault in OPEN command with I/O channel specified but no file
+ *
  *   Revision 1.16  2026/01/07 19:51:33  snw
  *   Fix segfault in reverse $QUERY
  *
@@ -620,6 +623,7 @@ void init_io (void)
     else {
         dev[HOME][0] = EOL;     /* ...we are in a pipe */
     }
+    for (i = 5; i <= MAXDEV; i++) dev[i][0] = EOL;
 #else
 #if defined(__AMIGA)
     strcpy (dev[HOME], "CONSOLE:");