diff --git a/crypto/cipher/e_tls.c b/crypto/cipher/e_tls.c
index 284d56a..5abbfd2 100644
--- a/crypto/cipher/e_tls.c
+++ b/crypto/cipher/e_tls.c
@@ -53,8 +53,8 @@
 
 static int aead_tls_init(EVP_AEAD_CTX *ctx, const uint8_t *key, size_t key_len,
                          size_t tag_len, enum evp_aead_direction_t dir,
-			 const EVP_CIPHER *cipher, const EVP_MD *md,
-			 char implicit_iv) {
+                         const EVP_CIPHER *cipher, const EVP_MD *md,
+                         char implicit_iv) {
   if (tag_len != EVP_AEAD_DEFAULT_TAG_LENGTH &&
       tag_len != EVP_MD_size(md)) {
     OPENSSL_PUT_ERROR(CIPHER, aead_tls_init, CIPHER_R_UNSUPPORTED_TAG_SIZE);