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-rw-r--r--src/libexpr/expr-to-xml.hh2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libexpr/expr-to-xml.hh b/src/libexpr/expr-to-xml.hh
index 36b8e40424d8..de9d55f320ac 100644
--- a/src/libexpr/expr-to-xml.hh
+++ b/src/libexpr/expr-to-xml.hh
@@ -9,7 +9,7 @@
 
 namespace nix {
 
-void printTermAsXML(Expr e, std::ostream & out, PathSet & context);
+void printTermAsXML(Expr e, std::ostream & out, PathSet & context, bool location = false);
     
 }