diff --git a/src/lib/sw_engine/tvgSwRenderer.cpp b/src/lib/sw_engine/tvgSwRenderer.cpp
index b1b7a203..a4814bd4 100644
--- a/src/lib/sw_engine/tvgSwRenderer.cpp
+++ b/src/lib/sw_engine/tvgSwRenderer.cpp
@@ -63,7 +63,7 @@ struct SwShapeTask : SwTask
 {
     SwShape shape;
     const Shape* sdata = nullptr;
-    bool cmpStroking;
+    bool cmpStroking = false;
 
     void run(unsigned tid) override
     {