diff --git a/disk/part.c b/disk/part.c
index cfd77b0..43485c9 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -57,7 +57,7 @@ static const struct block_drvr block_drvr[] = {
 DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef HAVE_BLOCK_DEVICE
-block_dev_desc_t *get_dev_hwpart(const char *ifname, int dev, int hwpart)
+static block_dev_desc_t *get_dev_hwpart(const char *ifname, int dev, int hwpart)
 {
 	const struct block_drvr *drvr = block_drvr;
 	block_dev_desc_t* (*reloc_get_dev)(int dev);