diff --git a/library/x509.c b/library/x509.c
index fad390d..4df542e 100644
--- a/library/x509.c
+++ b/library/x509.c
@@ -661,7 +661,7 @@
 
 /*
  * X.509 Extensions (No parsing of extensions, pointer should
- * be either manually updated or extensions should be parsed!
+ * be either manually updated or extensions should be parsed!)
  */
 int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end,
                   mbedtls_x509_buf *ext, int tag )