1 files changed, 6 insertions, 0 deletions
diff --git a/src/google/protobuf/stubs/once.cc b/src/google/protobuf/stubs/once.cc
index b47a031c..3c53bcd7 100644
--- a/src/google/protobuf/stubs/once.cc
+++ b/src/google/protobuf/stubs/once.cc
@@ -56,6 +56,12 @@ struct GoogleOnceInternal {
   CRITICAL_SECTION critical_section;
 };
 
+GoogleOnceType::~GoogleOnceType()
+{
+  delete internal_;
+  internal_ = NULL;
+}
+
 GoogleOnceType::GoogleOnceType() {
   // internal_ may be non-NULL if Init() was already called.
   if (internal_ == NULL) internal_ = new GoogleOnceInternal;