diff --git a/libavfilter/af_hdcd.c b/libavfilter/af_hdcd.c
index f4f7a01042..041b89fd2a 100644
--- a/libavfilter/af_hdcd.c
+++ b/libavfilter/af_hdcd.c
@@ -31,7 +31,7 @@
 */
 
 /*
-  More informations about high definition audio cds:
+  More information about high definition audio cds:
   http://www.audiomisc.co.uk/HFN/HDCD/Enigma.html
   http://www.audiomisc.co.uk/HFN/HDCD/Examined.html
  */