diff --git a/powerdebug.h b/powerdebug.h
index d07849d..4799118 100644
--- a/powerdebug.h
+++ b/powerdebug.h
@@ -62,6 +62,7 @@
 						struct clock_info *parent);
 extern void dump_clock_info(struct clock_info *clk, int level, int bmp);
 extern void insert_children(struct clock_info **parent, struct clock_info *clk);
+extern void find_parents_for_clock(char *clkname, int complete);
 extern int  read_and_print_clock_info(int verbose, int hrow, int selected);
 extern void print_clock_info(int verbose, int hrow, int selected);
 extern void get_sensor_info(char *path, char *name, char *sensor, int verbose);