diff --git a/src/protocol/file/file.c b/src/protocol/file/file.c
index 7e71c0d1..80f16380 100644
--- a/src/protocol/file/file.c
+++ b/src/protocol/file/file.c
@@ -196,7 +196,7 @@ list_directory(struct connection *conn, unsigned char *dirpath,
 
 	add_dir_entries(entries, dirpath, page);
 
-	if (!add_to_string(page, "</pre>\n<hr>\n</body>\n</html>\n")) {
+	if (!add_to_string(page, "</pre>\n<hr/>\n</body>\n</html>\n")) {
 		done_string(page);
 		return S_OUT_OF_MEM;
 	}
diff --git a/src/protocol/fsp/fsp.c b/src/protocol/fsp/fsp.c
index 8e2f3978..c66848a4 100644
--- a/src/protocol/fsp/fsp.c
+++ b/src/protocol/fsp/fsp.c
@@ -167,7 +167,7 @@ fsp_directory(FSP_SESSION *ses, struct uri *uri)
 		fsp_closedir(dir);
 	}
 end:
-	puts("</pre><hr></body></html>");
+	puts("</pre><hr/></body></html>");
 	fsp_close_session(ses);
 	exit(0);
 }
diff --git a/src/protocol/ftp/ftp.c b/src/protocol/ftp/ftp.c
index a2354da2..b46ecfdd 100644
--- a/src/protocol/ftp/ftp.c
+++ b/src/protocol/ftp/ftp.c
@@ -1367,7 +1367,7 @@ out_of_mem:
 	add_fragment(conn->cached, conn->from, str, sizeof(str) - 1); \
 	conn->from += (sizeof(str) - 1); }
 
-	if (ftp->dir) ADD_CONST("</pre>\n<hr>\n</body>\n</html>");
+	if (ftp->dir) ADD_CONST("</pre>\n<hr/>\n</body>\n</html>");
 
 	close_socket(conn->data_socket);