diff --git a/x11/pdcsetsc.c b/x11/pdcsetsc.c
index 2025f623..b871c16a 100644
--- a/x11/pdcsetsc.c
+++ b/x11/pdcsetsc.c
@@ -24,7 +24,7 @@
 #include <curses.h>
 
 #ifdef PDCDEBUG
-char *rcsid_PDCsetsc  = "$Id: pdcsetsc.c,v 1.1 2001/01/10 08:30:14 mark Exp $";
+char *rcsid_PDCsetsc  = "$Id: pdcsetsc.c,v 1.2 2001/01/10 08:30:16 mark Exp $";
 #endif
 
 
@@ -120,17 +120,18 @@ int visibility;
 #endif
 /***********************************************************************/
 {
- int ret_vis;
+   int ret_vis = SP->visibility;
 
 #ifdef PDCDEBUG
-	if (trace_on) PDC_debug("PDC_curs_set() - called: visibility=%d\n",visibility);
+   if (trace_on) PDC_debug("PDC_curs_set() - called: visibility=%d\n",visibility);
 #endif
 
-	ret_vis = SP->visibility;
-	SP->visibility = visibility;
-
-	XCurses_display_cursor(SP->cursrow,SP->curscol,SP->cursrow,SP->curscol);
-	return(ret_vis);
+   if ( visibility != -1 )
+   {
+      SP->visibility = visibility;
+   }
+   XCurses_display_cursor(SP->cursrow,SP->curscol,SP->cursrow,SP->curscol,visibility);
+   return(ret_vis);
 }
 
 /*man-start*********************************************************************