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-rw-r--r--src/libstore/remote-store.hh2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libstore/remote-store.hh b/src/libstore/remote-store.hh
index 19af8c0bed7f..29b4a88f9a4b 100644
--- a/src/libstore/remote-store.hh
+++ b/src/libstore/remote-store.hh
@@ -37,6 +37,8 @@ public:
 
     void queryReferrers(const Path & path, PathSet & referrers);
 
+    Path queryDeriver(const Path & path);
+    
     Path addToStore(const Path & srcPath, bool fixed = false,
         bool recursive = false, string hashAlgo = "",
         PathFilter & filter = defaultPathFilter);