diff --git a/core/filter_form_api.php b/core/filter_form_api.php
index c5260cfc6d..26da88e476 100644
--- a/core/filter_form_api.php
+++ b/core/filter_form_api.php
@@ -1557,7 +1557,7 @@ function print_filter_relationship_type( array $p_filter = null ) {
 	if( !$c_reltype_value ) {
 		$c_reltype_value = -1;
 	}
-	relationship_list_box( $c_reltype_value, 'relationship_type', true );
+	relationship_list_box( $c_reltype_value, 'relationship_type', true, false, "input-xs" );
 	echo '<input class="input-xs" type="text" name="', FILTER_PROPERTY_RELATIONSHIP_BUG, '" size="5" maxlength="10" value="', $p_filter[FILTER_PROPERTY_RELATIONSHIP_BUG], '" />';
 }
 
diff --git a/core/relationship_api.php b/core/relationship_api.php
index 990c75f6a7..7da13d0c8a 100644
--- a/core/relationship_api.php
+++ b/core/relationship_api.php
@@ -779,12 +779,13 @@ function relationship_get_summary_text( $p_bug_id ) {
  * @param string  $p_select_name      List box name (default "rel_type").
  * @param boolean $p_include_any      Include an ANY option in list box (default false).
  * @param boolean $p_include_none     Include a NONE option in list box (default false).
+ * @param string  $p_input_css        CSS classes to use with input fields
  * @return void
  */
-function relationship_list_box( $p_default_rel_type = BUG_REL_ANY, $p_select_name = 'rel_type', $p_include_any = false, $p_include_none = false ) {
+function relationship_list_box( $p_default_rel_type = BUG_REL_ANY, $p_select_name = 'rel_type', $p_include_any = false, $p_include_none = false, $p_input_css = "input-sm" ) {
 	global $g_relationships;
 	?>
-<select class="input-sm" name="<?php echo $p_select_name?>">
+<select class="<?php echo $p_input_css ?>" name="<?php echo $p_select_name?>">
 <?php if( $p_include_any ) {?>
 <option value="<?php echo BUG_REL_ANY ?>" <?php echo( $p_default_rel_type == BUG_REL_ANY ? ' selected="selected"' : '' )?>>[<?php echo lang_get( 'any' )?>]</option>
 <?php