diff --git a/programs/pkey/rsa_sign.c b/programs/pkey/rsa_sign.c
index f033eab..277034d 100644
--- a/programs/pkey/rsa_sign.c
+++ b/programs/pkey/rsa_sign.c
@@ -86,7 +86,7 @@
     }
 
     rsa_init( &rsa, RSA_PKCS_V15, 0 );
-    
+
     if( ( ret = mpi_read_file( &rsa.N , 16, f ) ) != 0 ||
         ( ret = mpi_read_file( &rsa.E , 16, f ) ) != 0 ||
         ( ret = mpi_read_file( &rsa.D , 16, f ) ) != 0 ||