diff --git a/src/term.c b/src/term.c
index c20da0c..a8819a3 100644
--- a/src/term.c
+++ b/src/term.c
@@ -6217,9 +6217,10 @@
 /*
  * Show all termcodes (for ":set termcap")
  * This code looks a lot like showoptions(), but is different.
+ * "flags" can have OPT_ONECOLUMN.
  */
     void
-show_termcodes(void)
+show_termcodes(int flags)
 {
     int		col;
     int		*items;
@@ -6244,12 +6245,13 @@
     msg_puts_title(_("\n--- Terminal keys ---"));
 
     /*
-     * do the loop two times:
+     * Do the loop three times:
      * 1. display the short items (non-strings and short strings)
      * 2. display the medium items (medium length strings)
      * 3. display the long items (remaining strings)
+     * When "flags" has OPT_ONECOLUMN do everything in 3.
      */
-    for (run = 1; run <= 3 && !got_int; ++run)
+    for (run = (flags & OPT_ONECOLUMN) ? 3 : 1; run <= 3 && !got_int; ++run)
     {
 	/*
 	 * collect the items in items[]
@@ -6259,9 +6261,10 @@
 	{
 	    len = show_one_termcode(termcodes[i].name,
 						    termcodes[i].code, FALSE);
-	    if (len <= INC3 - GAP ? run == 1
+	    if ((flags & OPT_ONECOLUMN) ||
+		    (len <= INC3 - GAP ? run == 1
 			: len <= INC2 - GAP ? run == 2
-			: run == 3)
+			: run == 3))
 		items[item_count++] = i;
 	}