diff --git a/src/core/display/Container.js b/src/core/display/Container.js
index 1a433b0..5dc3665 100644
--- a/src/core/display/Container.js
+++ b/src/core/display/Container.js
@@ -173,7 +173,7 @@
     {
         if (index < 0 || index >= this.children.length)
         {
-            throw new Error('The supplied index is out of bounds');
+            throw new Error(`The index ${index} supplied is out of bounds ${this.children.length}`);
         }
 
         const currentIndex = this.getChildIndex(child);

diff --git a/src/core/display/Container.js b/src/core/display/Container.js
index 1a433b0..5dc3665 100644
--- a/src/core/display/Container.js
+++ b/src/core/display/Container.js
@@ -173,7 +173,7 @@
     {
         if (index < 0 || index >= this.children.length)
         {
-            throw new Error('The supplied index is out of bounds');
+            throw new Error(`The index ${index} supplied is out of bounds ${this.children.length}`);
         }
 
         const currentIndex = this.getChildIndex(child);
diff --git a/test/core/Container.js b/test/core/Container.js
index cefde54..9f9333d 100644
--- a/test/core/Container.js
+++ b/test/core/Container.js
@@ -361,8 +361,8 @@
 
             container.addChild(child);
 
-            expect(() => container.setChildIndex(child, -1)).to.throw('The supplied index is out of bounds');
-            expect(() => container.setChildIndex(child, 1)).to.throw('The supplied index is out of bounds');
+            expect(() => container.setChildIndex(child, -1)).to.throw('The index -1 supplied is out of bounds 1');
+            expect(() => container.setChildIndex(child, 1)).to.throw('The index 1 supplied is out of bounds 1');
         });
 
         it('should throw when child does not belong', function ()