diff --git a/CHANGES.md b/CHANGES.md
index 7e2e0023..91a551f9 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -25,5 +25,6 @@ Changes in v2.0b1
 - Fixed "printer-id" value for new printers (Issue #301)
 - Fixed Set-Printer-Attributes for "output-bin-default" and "sides-default"
   (Issue #305)
+- Fixed "printer-settable-attributes-supported" value (Issue #311)
 - Fixed `-n` support for setting number of copies (Issue #312)
 - Fixed default "copies" value with `papplJobCreateWithFile`.
diff --git a/pappl/printer-driver.c b/pappl/printer-driver.c
index fee0c089..8203d54b 100644
--- a/pappl/printer-driver.c
+++ b/pappl/printer-driver.c
@@ -451,7 +451,6 @@ make_attrs(
   static const char * const printer_settable_attributes[] =
   {					// printer-settable-attributes values
     "copies-default",
-    "document-format-default",
     "media-col-default",
     "media-col-ready",
     "media-default",
@@ -461,6 +460,7 @@ make_attrs(
     "print-color-mode-default",
     "print-content-optimize-default",
     "print-quality-default",
+    "printer-contact-col",
     "printer-geo-location",
     "printer-location",
     "printer-organization",
@@ -1076,12 +1076,14 @@ make_attrs(
 
   // printer-settable-attributes
   memcpy((void *)svalues, printer_settable_attributes, sizeof(printer_settable_attributes));
-  num_values = (int)(sizeof(printer_settable_attributes) / sizeof(printer_settable_attributes[0]));
+  num_values = sizeof(printer_settable_attributes) / sizeof(printer_settable_attributes[0]);
 
   if (data->mode_supported)
     svalues[num_values ++] = "label-mode-configured";
   if (data->tear_offset_supported[1])
     svalues[num_values ++] = "label-tear-off-configured";
+  if (data->num_bin)
+    svalues[num_values ++] = "output-bin-default";
   if (data->darkness_supported)
     svalues[num_values ++] = "print-darkness-default";
   if (data->speed_supported[1])
@@ -1093,6 +1095,8 @@ make_attrs(
     svalues[num_values ++] = "printer-wifi-password";
     svalues[num_values ++] = "printer-wifi-ssid";
   }
+  if (data->sides_supported != PAPPL_SIDES_ONE_SIDED)
+    svalues[num_values ++] = "sides-default";
   for (i = 0; i < (size_t)data->num_vendor && num_values < (int)(sizeof(svalues) / sizeof(svalues[0])); i ++)
   {
     snprintf(vvalues[i], sizeof(vvalues[0]), "%s-default", data->vendor[i]);