diff --git a/lib/access.c b/lib/access.c
index 96b8195a..b6f08ff4 100644
--- a/lib/access.c
+++ b/lib/access.c
@@ -89,7 +89,7 @@ sensors_for_all_config_chips(const sensors_chip_name *name,
 /* Look up a subfeature in the intern chip list, and return a pointer to it.
    Do not modify the struct the return value points to! Returns NULL if 
    not found.*/
-const sensors_subfeature *
+static const sensors_subfeature *
 sensors_lookup_subfeature_nr(const sensors_chip_name *chip,
 			     int subfeat_nr)
 {
diff --git a/lib/access.h b/lib/access.h
index 0ba96ce9..bd735f41 100644
--- a/lib/access.h
+++ b/lib/access.h
@@ -23,13 +23,6 @@
 #include "sensors.h"
 #include "data.h"
 
-/* Look up a subfeature in the intern chip list, and return a pointer to it.
-   Do not modify the struct the return value points to! Returns NULL if
-   not found. */
-const sensors_subfeature *
-sensors_lookup_subfeature_nr(const sensors_chip_name *chip,
-			     int subfeat_nr);
-
 /* Check whether the chip name is an 'absolute' name, which can only match
    one chip, or whether it has wildcards. Returns 0 if it is absolute, 1
    if there are wildcards. */