diff --git a/complete.c b/complete.c
--- a/complete.c
+++ b/complete.c
@@ -2031,9 +2031,25 @@ rl_complete_internal (int what_to_do)
 
   text = rl_copy_text (start, end);
   matches = gen_completion_matches (text, start, end, our_func, found_quote, quote_char);
+  /* If TEXT contains quote characters, it will be dequoted as part of
+     generating the matches, and the matches will not contain any quote
+     characters. We need to dequote TEXT before performing the comparison.
+     Since compare_match performs the dequoting, and we only want to do it
+     once, we don't call compare_matches after dequoting TEXT; we call
+     strcmp directly. */
   /* nontrivial_lcd is set if the common prefix adds something to the word
      being completed. */
-  nontrivial_lcd = matches && compare_match (text, matches[0]) != 0;
+  if (rl_filename_completion_desired && rl_filename_quoting_desired &&
+      rl_completion_found_quote && rl_filename_dequoting_function)
+    {
+      char *t;
+      t = (*rl_filename_dequoting_function) (text, rl_completion_quote_character);
+      xfree (text);
+      text = t;
+      nontrivial_lcd = matches && strcmp (text, matches[0]) != 0;
+    }
+  else
+    nontrivial_lcd = matches && strcmp (text, matches[0]) != 0;
   if (what_to_do == '!' || what_to_do == '@')
     tlen = strlen (text);
   xfree (text);
diff --git a/patchlevel b/patchlevel
--- a/patchlevel
+++ b/patchlevel
@@ -1,3 +1,3 @@
 # Do not edit -- exists only for use by patch
 
-9
+10