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--- a/src/common/cstr.h
+++ b/src/common/cstr.h
@@ -81,5 +81,6 @@
 DEF_CSTR(dj_keymd5, "md5");
 DEF_CSTR(dj_keymt, "mimetype");
 DEF_CSTR(dj_keydocsize, "docsize");
+DEF_CSTR(dj_keyanc, "rclanc");
 
 #endif /* _CSTR_H_INCLUDED_ */