diff --git a/modules/printbackends/cups/gtkprintbackendcups.c b/modules/printbackends/cups/gtkprintbackendcups.c
index 4efeb72d75..cebdc17f8c 100644
--- a/modules/printbackends/cups/gtkprintbackendcups.c
+++ b/modules/printbackends/cups/gtkprintbackendcups.c
@@ -4839,25 +4839,33 @@ cups_printer_get_options (GtkPrinter           *printer,
       paper_size = gtk_page_setup_get_paper_size (page_setup);
 
       option = ppdFindOption (ppd_file, "PageSize");
-      ppd_name = gtk_paper_size_get_ppd_name (paper_size);
-      
-      if (ppd_name)
-	strncpy (option->defchoice, ppd_name, PPD_MAX_NAME);
-      else
+      if (option)
         {
-          gchar *custom_name;
-	  char width[G_ASCII_DTOSTR_BUF_SIZE];
-	  char height[G_ASCII_DTOSTR_BUF_SIZE];
+          ppd_name = gtk_paper_size_get_ppd_name (paper_size);
 
-	  g_ascii_formatd (width, sizeof (width), "%.2f", gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS));
-	  g_ascii_formatd (height, sizeof (height), "%.2f", gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS));
-          /* Translators: this format is used to display a custom paper
-           * size. The two placeholders are replaced with the width and height
-           * in points. E.g: "Custom 230.4x142.9"
-           */
-	  custom_name = g_strdup_printf (_("Custom %sx%s"), width, height);
-          strncpy (option->defchoice, custom_name, PPD_MAX_NAME);
-          g_free (custom_name);
+          if (ppd_name)
+            strncpy (option->defchoice, ppd_name, PPD_MAX_NAME);
+          else
+            {
+              gchar *custom_name;
+              char width[G_ASCII_DTOSTR_BUF_SIZE];
+              char height[G_ASCII_DTOSTR_BUF_SIZE];
+
+              g_ascii_formatd (width, sizeof (width), "%.2f",
+                               gtk_paper_size_get_width (paper_size,
+                                                         GTK_UNIT_POINTS));
+              g_ascii_formatd (height, sizeof (height), "%.2f",
+                               gtk_paper_size_get_height (paper_size,
+                                                          GTK_UNIT_POINTS));
+              /* Translators: this format is used to display a custom
+               * paper size. The two placeholders are replaced with
+               * the width and height in points. E.g: "Custom
+               * 230.4x142.9"
+               */
+              custom_name = g_strdup_printf (_("Custom %sx%s"), width, height);
+              strncpy (option->defchoice, custom_name, PPD_MAX_NAME);
+              g_free (custom_name);
+            }
         }
 
       for (i = 0; i < ppd_file->num_groups; i++)