Index: wp-admin/includes/plugin-install.php
===================================================================
--- wp-admin/includes/plugin-install.php	(revision 11231)
+++ wp-admin/includes/plugin-install.php	(working copy)
@@ -160,7 +160,7 @@
 		<select name="type" id="typeselector">
 			<option value="term"<?php selected('term', $type) ?>><?php _e('Term') ?></option>
 			<option value="author"<?php selected('author', $type) ?>><?php _e('Author') ?></option>
-			<option value="tag"<?php selected('tag', $type) ?>><?php _x('Tag', 'Plugin Installer') ?></option>
+			<option value="tag"<?php selected('tag', $type) ?>><?php echo _x('Tag', 'Plugin Installer') ?></option>
 		</select>
 		<input type="text" name="s" value="<?php echo esc_attr($term) ?>" />
 		<label class="invisible" for="plugin-search-input"><?php _e('Search Plugins'); ?></label>