Index: alien_formats/io_altium/binary.txt
===================================================================
--- alien_formats/io_altium/binary.txt	(revision 35599)
+++ alien_formats/io_altium/binary.txt	(revision 35600)
@@ -1,5 +1,5 @@
 The container format is CDF, which can be parsed using libucdf. The result is
-named binary streams. The structure of these binary streams are discussed in
+named binary streams. The structure of these binary streams is discussed in
 this document.
 
 bmil: 32 bit signed int in 1/10000 mil