diff --git a/README.md b/README.md
index c0a724235..5f2a5b848 100644
--- a/README.md
+++ b/README.md
@@ -136,7 +136,7 @@ If you want to do more, here's the full node specification
     expanded: true,
     selected: true
   },
-  tags: ['available'],
+  tags: [{text: 'available', class: 'badge-primary'}],
   nodes: [
     {},
     ...
@@ -212,9 +212,18 @@ Whether or not a node is expanded i.e. open.  Takes precedence over global optio
 Whether or not a node is selected.
 
 #### tags
-`Array of Strings`  `Optional`
+`Array of Objects`  `Optional`
 
-Used in conjunction with global showTags option to add additional information to the right of each node; using [Bootstrap Badges](http://getbootstrap.com/components/#badges)
+Used in conjunction with global showTags option to add additional information to the right of each node; using [Bootstrap Badges](https://getbootstrap.com/docs/4.4/components/badge/)
+
+The object must contain a `text` field and a `class` field naming the badge class, e.g. :
+
+```javascript
+{
+  text: 'available',
+  class: 'badge-primary'
+}
+```
 
 ### Extendible
 
diff --git a/src/js/bootstrap-treeview.js b/src/js/bootstrap-treeview.js
index 7a82a2eeb..558c1361d 100644
--- a/src/js/bootstrap-treeview.js
+++ b/src/js/bootstrap-treeview.js
@@ -321,7 +321,7 @@
 		var target = $(event.target);
 		var node = this.findNode(target);
 		if (!node || node.state.disabled) return;
-		
+
 		var classList = target.attr('class') ? target.attr('class').split(' ') : [];
 		if ((classList.indexOf('expand-icon') !== -1)) {
 
@@ -329,12 +329,12 @@
 			this.render();
 		}
 		else if ((classList.indexOf('check-icon') !== -1)) {
-			
+
 			this.toggleCheckedState(node, _default.options);
 			this.render();
 		}
 		else {
-			
+
 			if (node.selectable) {
 				this.toggleSelectedState(node, _default.options);
 			} else {
@@ -516,7 +516,7 @@
 				.addClass(node.state.checked ? 'node-checked' : '')
 				.addClass(node.state.disabled ? 'node-disabled': '')
 				.addClass(node.state.selected ? 'node-selected' : '')
-				.addClass(node.searchResult ? 'search-result' : '') 
+				.addClass(node.searchResult ? 'search-result' : '')
 				.attr('data-nodeid', node.nodeId)
 				.attr('style', _this.buildStyleOverride(node));
 
@@ -548,13 +548,13 @@
 
 			// Add node icon
 			if (_this.options.showIcon) {
-				
+
 				var classList = ['node-icon'];
 
 				classList.push(node.icon || _this.options.nodeIcon);
 				if (node.state.selected) {
 					classList.pop();
-					classList.push(node.selectedIcon || _this.options.selectedIcon || 
+					classList.push(node.selectedIcon || _this.options.selectedIcon ||
 									node.icon || _this.options.nodeIcon);
 				}
 
@@ -569,7 +569,7 @@
 
 				var classList = ['check-icon'];
 				if (node.state.checked) {
-					classList.push(_this.options.checkedIcon); 
+					classList.push(_this.options.checkedIcon);
 				}
 				else {
 					classList.push(_this.options.uncheckedIcon);
@@ -601,7 +601,7 @@
 				$.each(node.tags, function addTag(id, tag) {
 					treeItem
 						.append($(_this.template.badge)
-							.append(tag)
+							.append(tag.text).addClass(tag.class)
 						);
 				});
 			}
@@ -935,7 +935,7 @@
 		this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) {
 			this.toggleExpandedState(node, options);
 		}, this));
-		
+
 		this.render();
 	};
 
@@ -1085,7 +1085,7 @@
 
 		$.each(identifiers, $.proxy(function (index, identifier) {
 			callback(this.identifyNode(identifier), options);
-		}, this));	
+		}, this));
 	};
 
 	/*
@@ -1156,9 +1156,9 @@
 		});
 
 		if (options.render) {
-			this.render();	
+			this.render();
 		}
-		
+
 		this.$element.trigger('searchCleared', $.extend(true, {}, results));
 	};