diff --git a/src/particles/webgl/ParticleRenderer.js b/src/particles/webgl/ParticleRenderer.js
index 16b8236..72522ce 100644
--- a/src/particles/webgl/ParticleRenderer.js
+++ b/src/particles/webgl/ParticleRenderer.js
@@ -189,7 +189,7 @@
             // we always upload the dynamic
             buffer.uploadDynamic(children, i, amount);
 
-            const bid = container._bufferUpdateIDs[i] || 0;
+            const bid = container._bufferUpdateIDs[j] || 0;
 
             updateStatic = updateStatic || (buffer._updateID < bid);
             // we only upload the static content when we have to!