diff --git a/renderdoc/driver/shaders/dxbc/dxbc_container.cpp b/renderdoc/driver/shaders/dxbc/dxbc_container.cpp
index eaa82d492..4cc5b6aba 100644
--- a/renderdoc/driver/shaders/dxbc/dxbc_container.cpp
+++ b/renderdoc/driver/shaders/dxbc/dxbc_container.cpp
@@ -1974,7 +1974,7 @@ TEST_CASE("DO NOT COMMIT - convenience test", "[dxbc]")
   bytebuf buf;
   FileIO::ReadAll("/path/to/container_file.dxbc", buf);
 
-  DXBC::DXBCContainer container(buf.data(), buf.size());
+  DXBC::DXBCContainer container(buf, rdcstr());
 
   // the only thing fetched lazily is the disassembly, so grab that here