diff --git a/ssl/t1_enc.c b/ssl/t1_enc.c
index 7ef1558dee7d2b342dfadd2cb2a0c49afe8c3016..dd293065c100cab920c1e1bae9ae8389b8925f1f 100644
--- a/ssl/t1_enc.c
+++ b/ssl/t1_enc.c
@@ -1064,10 +1064,10 @@ int tls1_mac(SSL *ssl, unsigned char *md, int send)
 	if (!stream_mac)
 		EVP_MD_CTX_cleanup(&hmac);
 #ifdef TLS_DEBUG
-printf("seq=");
-{int z; for (z=0; z<8; z++) printf("%02X ",seq[z]); printf("\n"); }
-printf("rec=");
-{unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",rec->data[z]); printf("\n"); }
+fprintf(stderr,"seq=");
+{int z; for (z=0; z<8; z++) fprintf(stderr,"%02X ",seq[z]); fprintf(stderr,"\n"); }
+fprintf(stderr,"rec=");
+{unsigned int z; for (z=0; z<rec->length; z++) fprintf(stderr,"%02X ",rec->data[z]); fprintf(stderr,"\n"); }
 #endif
 
 	if (!SSL_IS_DTLS(ssl))
@@ -1080,7 +1080,7 @@ printf("rec=");
 		}
 
 #ifdef TLS_DEBUG
-{unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",md[z]); printf("\n"); }
+{unsigned int z; for (z=0; z<md_size; z++) fprintf(stderr,"%02X ",md[z]); fprintf(stderr,"\n"); }
 #endif
 	return(md_size);
 	}