diff --git a/data.c b/data.c
index b32461c..40c663d 100644
--- a/data.c
+++ b/data.c
@@ -244,32 +244,11 @@ double mtime_nl(const char *fn, int *n_link)
 /** indexes **/
 
 
-FILE *index_lock(const char *fn)
-{
-    xs *lck = xs_fmt("%s.lck", fn);
-    FILE *f = fopen(lck, "a");
-    flock(fileno(f), LOCK_EX);
-
-    return f;
-}
-
-
-void index_unlock(FILE *f, const char *fn)
-{
-    xs *lck = xs_fmt("%s.lck", fn);
-    unlink(lck);
-    fclose(f);
-}
-
-
 int index_add_md5(const char *fn, const char *md5)
 /* adds an md5 to an index */
 {
     int status = 201; /* Created */
-    FILE *l, *f;
-
-    if ((l = index_lock(fn)) == NULL)
-        return 500;
+    FILE *f;
 
     if ((f = fopen(fn, "a")) != NULL) {
         flock(fileno(f), LOCK_EX);
@@ -283,8 +262,6 @@ int index_add_md5(const char *fn, const char *md5)
     else
         status = 500;
 
-    index_unlock(l, fn);
-
     return status;
 }
 
@@ -301,10 +278,7 @@ int index_del_md5(const char *fn, const char *md5)
 /* deletes an md5 from an index */
 {
     int status = 404;
-    FILE *l, *i, *o;
-
-    if ((l = index_lock(fn)) == NULL)
-        return 500;
+    FILE *i, *o;
 
     if ((i = fopen(fn, "r")) != NULL) {
         flock(fileno(i), LOCK_EX);
@@ -335,8 +309,6 @@ int index_del_md5(const char *fn, const char *md5)
     else
         status = 500;
 
-    index_unlock(l, fn);
-
     return status;
 }