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-rw-r--r--src/nix-store/xmlgraph.hh5
1 files changed, 1 insertions, 4 deletions
diff --git a/src/nix-store/xmlgraph.hh b/src/nix-store/xmlgraph.hh
index 2f9908c43665..c2216c5a4627 100644
--- a/src/nix-store/xmlgraph.hh
+++ b/src/nix-store/xmlgraph.hh
@@ -1,5 +1,4 @@
-#ifndef __XMLGRAPH_H
-#define __XMLGRAPH_H
+#pragma once
 
 #include "types.hh"
 
@@ -8,5 +7,3 @@ namespace nix {
 void printXmlGraph(const PathSet & roots);
 
 }
-
-#endif /* !__XMLGRAPH_H */