diff --git a/src/gl/gl3pipe.cpp b/src/gl/gl3pipe.cpp
index c76db6e..1b07111 100644
--- a/src/gl/gl3pipe.cpp
+++ b/src/gl/gl3pipe.cpp
@@ -38,6 +38,7 @@ freeInstanceData(Geometry *geometry)
 	rwFree(header->indexBuffer);
 	rwFree(header->vertexBuffer);
 	rwFree(header->attribDesc);
+	rwFree(header->inst);
 	rwFree(header);
 }