diff --git a/src/node_stroke_preview.cpp b/src/node_stroke_preview.cpp
index 09d6eb8..0e13905 100644
--- a/src/node_stroke_preview.cpp
+++ b/src/node_stroke_preview.cpp
@@ -38,8 +38,6 @@ void NodeStrokePreview::empty_queue()
     s_queue.q.clear();
 }
 
-int NodeStrokePreview::instances = 0;
-
 Node* NodeStrokePreview::clone_instantiate() const
 {
     return new NodeStrokePreview();