diff --git a/Cantera/src/oneD/Domain1D.h b/Cantera/src/oneD/Domain1D.h
index d02481d38..d09f18858 100644
--- a/Cantera/src/oneD/Domain1D.h
+++ b/Cantera/src/oneD/Domain1D.h
@@ -57,7 +57,7 @@ namespace Cantera {
             m_left(0),
             m_right(0),
             m_id("-"), m_desc("-"),
-            m_refiner(0) {
+            m_refiner(0), m_bw(-1) {
             resize(nv, points);
         }