diff --git a/lib/src/lsodium.c b/lib/src/lsodium.c
index 3d18df4..7a23da3 100644
--- a/lib/src/lsodium.c
+++ b/lib/src/lsodium.c
@@ -19,7 +19,6 @@ bool laikaK_genKeys(uint8_t *outPub, uint8_t *outPriv) {
 }
 
 bool laikaK_checkAuth(uint8_t *pubKey, uint8_t **authKeys, int keys) {
-    char buf[128]; /* i don't expect bin2hex to write outside this, but it's only user-info and doesn't break anything (ie doesn't write outside the buffer) */
     int i;
 
     /* check if key is in authKey list */