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-rw-r--r--src/libutil/aterm-map.hh6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/libutil/aterm-map.hh b/src/libutil/aterm-map.hh
index 115ed36cd5..293df1eb59 100644
--- a/src/libutil/aterm-map.hh
+++ b/src/libutil/aterm-map.hh
@@ -4,7 +4,8 @@
 #include <aterm2.h>
 #include <assert.h>
 
-using namespace std;
+
+namespace nix {
 
 
 class ATermMap
@@ -121,5 +122,8 @@ private:
 /* Hack. */
 void printATermMapStats();
 
+ 
+}
+
 
 #endif /* !__ATERM_MAP_H */