1 files changed, 4 insertions, 0 deletions
diff --git a/intern/cycles/subd/subd_patch.h b/intern/cycles/subd/subd_patch.h
index 2e3484f95e3..8fe423bc94d 100644
--- a/intern/cycles/subd/subd_patch.h
+++ b/intern/cycles/subd/subd_patch.h
@@ -24,6 +24,10 @@ CCL_NAMESPACE_BEGIN
 
 class Patch {
  public:
+  Patch() : patch_index(0), shader(0), from_ngon(false)
+  {
+  }
+
   virtual ~Patch() = default;
 
   virtual void eval(float3 *P, float3 *dPdu, float3 *dPdv, float3 *N, float u, float v) = 0;