1 files changed, 2 insertions, 2 deletions

diff --git a/sk-usbhid.c b/sk-usbhid.c
index 4d64550c9..2a573caa2 100644
--- a/sk-usbhid.c
+++ b/sk-usbhid.c
@@ -454,7 +454,7 @@ check_sk_extensions(fido_dev_t *dev, const char *ext, int *ret)
 {
         fido_cbor_info_t *info;
         char * const *ptr;
-        size_t len;
+        size_t len, i;
         int r;
 
         *ret = 0;
@@ -474,7 +474,7 @@ check_sk_extensions(fido_dev_t *dev, const char *ext, int *ret)
         }
         ptr = fido_cbor_info_extensions_ptr(info);
         len = fido_cbor_info_extensions_len(info);
-        for (size_t i = 0; i < len; i++) {
+        for (i = 0; i < len; i++) {
                 if (!strcmp(ptr[i], ext)) {
                         *ret = 1;
                         break;