1 files changed, 2 insertions, 2 deletions
diff --git a/src/libstore/pathlocks.hh b/src/libstore/pathlocks.hh
index 759b9a584..5e3a734b4 100644
--- a/src/libstore/pathlocks.hh
+++ b/src/libstore/pathlocks.hh
@@ -26,9 +26,9 @@ private:
 public:
     PathLocks();
     PathLocks(const PathSet & paths,
-        const string & waitMsg = "");
+        const std::string & waitMsg = "");
     bool lockPaths(const PathSet & _paths,
-        const string & waitMsg = "",
+        const std::string & waitMsg = "",
         bool wait = true);
     ~PathLocks();
     void unlock();