diff --git a/src/scripts/tutti/1_project-navigation.js b/src/scripts/tutti/1_project-navigation.js
index a39dd19b..32d7b423 100644
--- a/src/scripts/tutti/1_project-navigation.js
+++ b/src/scripts/tutti/1_project-navigation.js
@@ -100,38 +100,39 @@ function containerResizeY(window_height){
 };
 
 function loadProjectSidebar(){
-
 	var bcloud_ui = Cookies.getJSON('bcloud_ui');
 
-	if (bcloud_ui && bcloud_ui.show_project_sidebar) {
-		showProjectSidebar();
-	} else {
+	if (bcloud_ui && bcloud_ui.hide_project_sidebar) {
 		hideProjectSidebar();
+	} else {
+		showProjectSidebar();
 	};
 }
 
 function showProjectSidebar(){
-	setJSONCookie('bcloud_ui', 'show_project_sidebar', true);
+	Cookies.remove('bcloud_ui', 'hide_project_sidebar');
 
 	$('#project-container').addClass('is-sidebar-visible');
-	$('#project-side-container').removeClass('d-none');
+
+	// Hide the toggle button.
 	$('.breadcrumbs-container .project-sidebar-toggle').hide();
 }
 
 function hideProjectSidebar(){
-	Cookies.remove('bcloud_ui', 'show_project_sidebar');
+	setJSONCookie('bcloud_ui', 'hide_project_sidebar', true);
 
 	$('#project-container').removeClass('is-sidebar-visible');
-	$('#project-side-container').addClass('d-none');
+
+	// Show the toggle button.
 	$('.breadcrumbs-container .project-sidebar-toggle').show();
 }
 
 function toggleProjectSidebar(){
-	let $projectSidebar = $('#project-side-container');
+	let $projectContainer = $('#project-container');
 
-	if ($projectSidebar.hasClass('d-none')) {
-		showProjectSidebar();
-	} else {
+	if ($projectContainer.hasClass('is-sidebar-visible')) {
 		hideProjectSidebar();
+	} else {
+		showProjectSidebar();
 	};
 }
diff --git a/src/styles/_project.sass b/src/styles/_project.sass
index 7380e678..861cb46c 100644
--- a/src/styles/_project.sass
+++ b/src/styles/_project.sass
@@ -17,6 +17,9 @@ body.svnman, body.edit_node_types, body.search-project
 	z-index: $z-index-base
 
 	&.is-sidebar-visible
+		#project-side-container
+			@extend .d-flex
+
 		.breadcrumbs-container
 			+media-xs
 				left: $project_nav-width-xs
@@ -30,7 +33,7 @@ body.svnman, body.edit_node_types, body.search-project
 				left: $project_nav-width-xl
 
 #project-side-container
-	display: flex
+	display: none
 
 	+media-xs
 		position: fixed