diff --git a/src/adapter.c b/src/adapter.c
index 3dac7d6..3935460 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -7107,7 +7107,7 @@ static void store_csrk(struct btd_adapter *adapter, const bdaddr_t *peer,
 
 	ba2str(peer, device_addr);
 
-	snprintf(filename, sizeof(filename), STORAGEDIR "/%s/%s/info",
+	snprintf(filename, PATH_MAX, STORAGEDIR "/%s/%s/info",
 					adapter_dir(adapter), device_addr);
 
 	key_file = g_key_file_new();
diff --git a/src/shared/util.c b/src/shared/util.c
index 7878552..4b59fad 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -117,7 +117,7 @@ unsigned char util_get_dt(const char *parent, const char *name)
 	char filename[PATH_MAX];
 	struct stat st;
 
-	snprintf(filename, sizeof(filename), "%s/%s", parent, name);
+	snprintf(filename, PATH_MAX, "%s/%s", parent, name);
 	if (lstat(filename, &st) == 0 && S_ISDIR(st.st_mode))
 		return DT_DIR;