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--- a/src/internfile/internfile.h
+++ b/src/internfile/internfile.h
@@ -124,7 +124,7 @@
     /** 
      * Build sig for doc coming from rcldb. This is here because we know how
      * to query the right backend */
-    static bool makesig(const Rcl::Doc& idoc, string& sig);
+    static bool makesig(RclConfig *cnf, const Rcl::Doc& idoc, string& sig);
 
     ~FileInterner();