diff --git a/library/sha512.c b/library/sha512.c
index a55a94b..5537e8d 100644
--- a/library/sha512.c
+++ b/library/sha512.c
@@ -236,7 +236,8 @@
 /*
  * SHA-512 process buffer
  */
-void sha512_update( sha512_context *ctx, const unsigned char *input, size_t ilen )
+void sha512_update( sha512_context *ctx, const unsigned char *input,
+                    size_t ilen )
 {
     size_t fill;
     unsigned int left;