- Fixed renumber error code for POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR

diff --git a/programs/random/gen_random_ctr_drbg.c b/programs/random/gen_random_ctr_drbg.c
index fb3a340..ead9bb2 100644
--- a/programs/random/gen_random_ctr_drbg.c
+++ b/programs/random/gen_random_ctr_drbg.c
@@ -67,7 +67,7 @@
 #if defined(POLARSSL_FS_IO)
     ret = ctr_drbg_update_seed_file( &ctr_drbg, "seedfile" );
 
-    if( ret == 1 )
+    if( ret == POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR )
     {
         printf("Failed to open seedfile. Generating one.\n");
         ret = ctr_drbg_write_seed_file( &ctr_drbg, "seedfile" );