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-rw-r--r--src/libstore/gc.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc
index 943b16c28fa3..ba49749d830a 100644
--- a/src/libstore/gc.cc
+++ b/src/libstore/gc.cc
@@ -59,7 +59,7 @@ static void makeSymlink(const Path & link, const Path & target)
 
     /* Create the new symlink. */
     Path tempLink = (format("%1%.tmp-%2%-%3%")
-        % link % getpid() % rand()).str();
+        % link % getpid() % random()).str();
     createSymlink(target, tempLink);
 
     /* Atomically replace the old one. */