diff --git a/library/sha1.c b/library/sha1.c
index b89db32..ee5cdc3 100644
--- a/library/sha1.c
+++ b/library/sha1.c
@@ -454,7 +454,7 @@
 /*
  * FIPS-180-1 test vectors
  */
-static unsigned char sha1_test_buf[3][57] = 
+static unsigned char sha1_test_buf[3][57] =
 {
     { "abc" },
     { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
@@ -629,6 +629,6 @@
     return( 0 );
 }
 
-#endif
+#endif /* POLARSSL_SELF_TEST */
 
-#endif
+#endif /* POLARSSL_SHA1_C */