diff --git a/erb/cpp03_zone.hpp.erb b/erb/cpp03_zone.hpp.erb
index e62eabb3d..ba5400c76 100644
--- a/erb/cpp03_zone.hpp.erb
+++ b/erb/cpp03_zone.hpp.erb
@@ -125,6 +125,7 @@ class zone {
                     ::free(c);
                     c = n;
                 } else {
+                    m_head = c;
                     break;
                 }
             }
diff --git a/include/msgpack/detail/cpp03_zone.hpp b/include/msgpack/detail/cpp03_zone.hpp
index e84fae352..fe885b737 100644
--- a/include/msgpack/detail/cpp03_zone.hpp
+++ b/include/msgpack/detail/cpp03_zone.hpp
@@ -125,6 +125,7 @@ class zone {
                     ::free(c);
                     c = n;
                 } else {
+                    m_head = c;
                     break;
                 }
             }