diff --git a/avilib-0.6.10/avilib.c b/avilib-0.6.10/avilib.c
index 7041c124b..cc1aacf52 100644
--- a/avilib-0.6.10/avilib.c
+++ b/avilib-0.6.10/avilib.c
@@ -31,7 +31,6 @@
 #include <io.h>
 #define ftruncate _chsize
 #define strncasecmp _strnicmp
-typedef int ssize_t;
 #else // COMP_...
 #include <unistd.h>
 #endif
diff --git a/avilib/avilib.c b/avilib/avilib.c
index e22815ec1..850c3d3c4 100644
--- a/avilib/avilib.c
+++ b/avilib/avilib.c
@@ -31,7 +31,6 @@
 #include <io.h>
 #define ftruncate _chsize
 #define strncasecmp _strnicmp
-typedef int ssize_t;
 #else // COMP_...
 #include <unistd.h>
 #endif