1 files changed, 2 insertions, 1 deletions
diff --git a/idlc/source/aststructinstance.cxx b/idlc/source/aststructinstance.cxx
index e7723d19bd2d..878745793fd2 100644
--- a/idlc/source/aststructinstance.cxx
+++ b/idlc/source/aststructinstance.cxx
@@ -31,7 +31,8 @@ namespace {
 OString createName(
     AstType const * typeTemplate, DeclList const * typeArguments)
 {
-    OStringBuffer buf(typeTemplate->getScopedName());
+    OStringBuffer buf(64);
+    buf.append(typeTemplate->getScopedName());
     if (typeArguments != nullptr) {
         buf.append('<');
         for (DeclList::const_iterator i(typeArguments->begin());