diff --git a/include/vlc_memstream.h b/include/vlc_memstream.h
index 9086f1b9e65bf152ed5b4be8fb34897b2d9354bb..63337651fbd1f11444809f71588ac565542afa64 100644
--- a/include/vlc_memstream.h
+++ b/include/vlc_memstream.h
@@ -19,7 +19,7 @@
  *****************************************************************************/
 
 #ifndef VLC_MEMSTREAM_H
-# define VLC_MEMSREAM_H 1
+# define VLC_MEMSTREAM_H 1
 
 # include <stdarg.h>
 # include <stdio.h>