diff --git a/lib/des/des.h b/lib/des/des.h
index beb7433da..0f603c26f 100644
--- a/lib/des/des.h
+++ b/lib/des/des.h
@@ -64,7 +64,7 @@ void	DES_set_random_generator_seed(DES_cblock *);
 void	DES_generate_random_block(DES_cblock *);
 void	DES_set_sequence_number(unsigned char *);
 void 	DES_init_random_number_generator(DES_cblock *);
-void	DES_random_key(DES_cblock);
+void	DES_random_key(DES_cblock *);
 
 
 void	DES_encrypt(uint32_t [2], DES_key_schedule *, int);
diff --git a/lib/des/rnd_keys.c b/lib/des/rnd_keys.c
index bb6c23ff7..3c49296d0 100644
--- a/lib/des/rnd_keys.c
+++ b/lib/des/rnd_keys.c
@@ -460,9 +460,9 @@ DES_init_random_number_generator(DES_cblock *seed)
 
 /* This is for backwards compatibility. */
 void
-DES_random_key(DES_cblock ret)
+DES_random_key(DES_cblock *ret)
 {
-    DES_new_random_key((DES_cblock *)ret);
+    DES_new_random_key(ret);
 }
 
 #ifdef TESTRUN