diff --git a/src/rrd_tool.h b/src/rrd_tool.h
index c1c9728436a327ea5f4d924eb207f4fbb9a7c359..47d231db4bbf711f7a696e368a2d853fdf5b138e 100644 (file)
--- a/src/rrd_tool.h
+++ b/src/rrd_tool.h
#ifdef HAVE_LIBDBI
-int rrd_fetch_fn_libdbi(char *filename, enum cf_en cf_idx,
+int rrd_fetch_fn_libdbi(const char *filename, enum cf_en cf_idx,
time_t *start,time_t *end,
unsigned long *step,
unsigned long *ds_cnt,