diff --git a/dlls/rpcrt4/ndr_marshall.c b/dlls/rpcrt4/ndr_marshall.c
index 3d06cf1ce4d..836410b5816 100644
--- a/dlls/rpcrt4/ndr_marshall.c
+++ b/dlls/rpcrt4/ndr_marshall.c
@@ -2858,7 +2858,7 @@ unsigned char * WINAPI NdrComplexStructMarshall(PMIDL_STUB_MESSAGE pStubMsg,
 
   pStubMsg->Memory = pMemory;
 
-  ComplexMarshall(pStubMsg, pMemory, pFormat, pointer_desc);
+  pMemory = ComplexMarshall(pStubMsg, pMemory, pFormat, pointer_desc);
 
   if (conf_array)
     NdrConformantArrayMarshall(pStubMsg, pMemory, conf_array);