diff --git a/grouped-categories.js b/grouped-categories.js
index 4bc4a59..5a16eca 100644
--- a/grouped-categories.js
+++ b/grouped-categories.js
@@ -41,10 +41,11 @@
 		return JSON.parse(JSON.stringify(thing));
 	}
 
-	function Category(obj, parent) {
+	function Category(obj, parent, tooltipOptions) {
 		this.userOptions = deepClone(obj);
 		this.name = obj.name || obj;
 		this.parent = parent;
+		this.tooltipOptions = tooltipOptions;
 
 		return this;
 	}
@@ -58,6 +59,10 @@
 			cat = cat.parent;
 		}
 
+		if (this.tooltipOptions.reverseTitle) {
+			parts = parts.reverse();
+		}
+
 		return parts.join(', ');
 	};
 
@@ -74,8 +79,8 @@
 	}
 
 	// Adds category leaf to array
-	function addLeaf(out, cat, parent) {
-		out.unshift(new Category(cat, parent));
+	function addLeaf(out, cat, parent, tooltipOptions) {
+		out.unshift(new Category(cat, parent, tooltipOptions));
 
 		while (parent) {
 			parent.leaves = parent.leaves ? (parent.leaves + 1) : 1;
@@ -100,7 +105,7 @@
 				}
 				buildTree(cat.categories, out, options, cat, depth + 1);
 			} else {
-				addLeaf(out, cat, parent);
+				addLeaf(out, cat, parent, options.userSuppliedTooltipOptions);
 			}
 		}
 		options.depth = mathMax(options.depth, depth);
@@ -165,6 +170,8 @@
 			userAttr = labelOptions.groupedOptions,
 			css = labelOptions.style;
 
+		stats.userSuppliedTooltipOptions = this.chart.options.tooltip || {};
+
 		// build categories tree
 		buildTree(categories, reverseTree, stats);