diff --git a/src/apps/altcp_tls/altcp_tls_mbedtls.c b/src/apps/altcp_tls/altcp_tls_mbedtls.c
index cd286f14..93def798 100644
--- a/src/apps/altcp_tls/altcp_tls_mbedtls.c
+++ b/src/apps/altcp_tls/altcp_tls_mbedtls.c
@@ -883,7 +883,7 @@ altcp_tls_free_config(struct altcp_tls_config *conf)
   }
   if (conf->ca) {
     mbedtls_x509_crt_free(conf->ca);
-  }  
+  }
   altcp_mbedtls_free_config(conf);
 }