diff --git a/src/abr.cpp b/src/abr.cpp
index 13c8d4c..c268c73 100644
--- a/src/abr.cpp
+++ b/src/abr.cpp
@@ -193,7 +193,8 @@ std::vector<std::shared_ptr<Brush>> ABR::compute_brushes(const std::string& path
         }
 
         // dual brush
-        if (auto db = p->get<Descriptor>("dualBrush"))
+        auto db = p->get<Descriptor>("dualBrush");
+        if (db && db->value<Boolean>("useDualBrush"))
         {
             auto samp = db->get<Descriptor>("Brsh");
             if (samp->class_id != "sampledBrush" && samp->class_id != "computedBrush")
@@ -223,7 +224,7 @@ std::vector<std::shared_ptr<Brush>> ABR::compute_brushes(const std::string& path
             if (db->value<Boolean>("useScatter"))
             {
                 auto scatter = db->get<Descriptor>("scatterDynamics");
-                b->m_dual_scatter = scatter->value<UnitFloat>("jitter");
+                b->m_dual_scatter = scatter->value<UnitFloat>("jitter") * 0.001f;
             }
 
             // brush sample