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-rw-r--r--src/nix-env/main.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/nix-env/main.cc b/src/nix-env/main.cc
index 02defe44a3c4..7ec2667e75c8 100644
--- a/src/nix-env/main.cc
+++ b/src/nix-env/main.cc
@@ -804,7 +804,7 @@ static void opQuery(Globals & globals,
     /* Print the desired columns, or XML output. */
     Table table;
     ostringstream dummy;
-    XMLWriter xml(xmlOutput ? cout : dummy);
+    XMLWriter xml(*(xmlOutput ? &cout : &dummy));
     XMLOpenElement xmlRoot(xml, "items");
     
     for (vector<DrvInfo>::iterator i = elems2.begin();