diff --git a/xpcom/build/dlldeps.cpp b/xpcom/build/dlldeps.cpp
index 194f9277e72f..f6b0390ce38c 100644
--- a/xpcom/build/dlldeps.cpp
+++ b/xpcom/build/dlldeps.cpp
@@ -88,6 +88,7 @@
 #include "pldhash.h"
 #include "nsVariant.h"
 #include "nsEscape.h"
+#include "nsStreamUtils.h"
 
 void XXXNeverCalled()
 {
@@ -108,7 +109,7 @@ void XXXNeverCalled()
     NS_NewPipe2(nsnull, nsnull, PR_FALSE, PR_FALSE, 0, 0, nsnull);
     NS_NewInputStreamReadyEvent(nsnull, nsnull, nsnull);
     NS_NewOutputStreamReadyEvent(nsnull, nsnull, nsnull);
-    NS_AsyncCopy(nsnull, nsnull, nsnull, 0, 0, nsnull, nsnull);
+    NS_AsyncCopy(nsnull, nsnull, nsnull, NS_ASYNCCOPY_VIA_READSEGMENTS, 0, nsnull, nsnull);
     PL_DHashStubEnumRemove(nsnull, nsnull, nsnull, nsnull);
     nsIDHashKey::HashKey(nsnull);
     nsFixedSizeAllocator a;