diff --git a/src/tls_openssl.c b/src/tls_openssl.c
index 36fc4b4..2379153 100644
--- a/src/tls_openssl.c
+++ b/src/tls_openssl.c
@@ -77,12 +77,12 @@ tls_t *tls_new(xmpp_ctx_t *ctx, sock_t sock)
         if (tls->ssl_ctx == NULL)
             goto err;
 
-	SSL_CTX_set_options(tls->ssl_ctx, SSL_OP_ALL); /* Enable bug workarounds. */
+        SSL_CTX_set_options(tls->ssl_ctx, SSL_OP_ALL); /* Enable bug workarounds. */
 
-	/* Disable insecure SSL/TLS versions. */
-	SSL_CTX_set_options(tls->ssl_ctx, SSL_OP_NO_SSLv2); /* DROWN */
-	SSL_CTX_set_options(tls->ssl_ctx, SSL_OP_NO_SSLv3); /* POODLE */
-	SSL_CTX_set_options(tls->ssl_ctx, SSL_OP_NO_TLSv1); /* BEAST */
+        /* Disable insecure SSL/TLS versions. */
+        SSL_CTX_set_options(tls->ssl_ctx, SSL_OP_NO_SSLv2); /* DROWN */
+        SSL_CTX_set_options(tls->ssl_ctx, SSL_OP_NO_SSLv3); /* POODLE */
+        SSL_CTX_set_options(tls->ssl_ctx, SSL_OP_NO_TLSv1); /* BEAST */
 
         SSL_CTX_set_client_cert_cb(tls->ssl_ctx, NULL);
         SSL_CTX_set_mode(tls->ssl_ctx, SSL_MODE_ENABLE_PARTIAL_WRITE);