diff --git a/prog/sensors/chips.h b/prog/sensors/chips.h
index e1d5d308..dac1d1f5 100644
--- a/prog/sensors/chips.h
+++ b/prog/sensors/chips.h
@@ -39,5 +39,6 @@ extern void print_w83781d(const sensors_chip_name *name);
 extern void print_maxilife(const sensors_chip_name *name);
 extern void print_ddcmon(const sensors_chip_name *name);
 extern void print_eeprom(const sensors_chip_name *name);
+extern void print_lm87(const sensors_chip_name *name);
 
 #endif /* def PROG_SENSORS_CHIPS_H */