diff --git a/wp-admin/categories.php b/wp-admin/categories.php
index 70fe62400d..06f4eb18fb 100644
--- a/wp-admin/categories.php
+++ b/wp-admin/categories.php
@@ -297,7 +297,7 @@ if ( $page_links )
 	<input name="cat_name" id="cat_name" type="text" value="" size="40" aria-required="true" />
     <p><?php _e('The name is used to identify the category almost everywhere, for example under the post or in the category widget.'); ?></p>
 </div>
-<?php if ( is_multisite() ) { ?>
+<?php if ( !is_multisite() ) { ?>
 <div class="form-field">
 	<label for="category_nicename"><?php _e('Category Slug') ?></label>
 	<input name="category_nicename" id="category_nicename" type="text" value="" size="40" />
diff --git a/wp-admin/edit-category-form.php b/wp-admin/edit-category-form.php
index 09f904a52d..354f4bf838 100644
--- a/wp-admin/edit-category-form.php
+++ b/wp-admin/edit-category-form.php
@@ -58,7 +58,7 @@ _fill_empty_category($category);
 			<th scope="row" valign="top"><label for="cat_name"><?php _e('Category Name') ?></label></th>
 			<td><input name="cat_name" id="cat_name" type="text" value="<?php echo esc_attr($category->name); ?>" size="40" aria-required="true" /></td>
 		</tr>
-<?php if ( is_multisite() ) { ?>
+<?php if ( !is_multisite() ) { ?>
 		<tr class="form-field">
 			<th scope="row" valign="top"><label for="category_nicename"><?php _e('Category Slug') ?></label></th>
 			<td><input name="category_nicename" id="category_nicename" type="text" value="<?php echo esc_attr(apply_filters('editable_slug', $category->slug)); ?>" size="40" /><br />
diff --git a/wp-admin/edit-link-categories.php b/wp-admin/edit-link-categories.php
index 5f9852436c..ab48ca3357 100644
--- a/wp-admin/edit-link-categories.php
+++ b/wp-admin/edit-link-categories.php
@@ -200,7 +200,7 @@ if ( $page_links )
 	<label for="name"><?php _e('Link Category name') ?></label>
 	<input name="name" id="name" type="text" value="" size="40" aria-required="true" />
 </div>
-<?php if ( is_multisite() ) { ?>
+<?php if ( !is_multisite() ) { ?>
 <div class="form-field">
 	<label for="slug"><?php _e('Link Category slug') ?></label>
 	<input name="slug" id="slug" type="text" value="" size="40" />