diff --git a/include/reactphysics3d/utils/DebugRenderer.h b/include/reactphysics3d/utils/DebugRenderer.h
index 93f22b5c..8c1b90e3 100644
--- a/include/reactphysics3d/utils/DebugRenderer.h
+++ b/include/reactphysics3d/utils/DebugRenderer.h
@@ -328,4 +328,16 @@ inline void DebugRenderer::setContactNormalLength(decimal contactNormalLength) {
 
 }
 
+// Hash function for a DebugItem
+namespace std {
+
+  template <> struct hash<reactphysics3d::DebugRenderer::DebugItem> {
+
+    size_t operator()(const reactphysics3d::DebugRenderer::DebugItem& debugItem) const {
+
+        return std::hash<reactphysics3d::uint32>{}(static_cast<uint>(debugItem));
+    }
+  };
+}
+
 #endif