diff --git a/include/ogg/os_types.h b/include/ogg/os_types.h
index e655a1d6..d17acf0b 100644
--- a/include/ogg/os_types.h
+++ b/include/ogg/os_types.h
@@ -115,6 +115,7 @@
 
    /* DJGPP */
    typedef short ogg_int16_t;
+   typedef unsigned short ogg_uint16_t;
    typedef int ogg_int32_t;
    typedef unsigned int ogg_uint32_t;
    typedef long long ogg_int64_t;
@@ -128,6 +129,7 @@
    typedef int ogg_int32_t;
    typedef unsigned ogg_uint32_t;
    typedef short ogg_int16_t;
+   typedef unsigned short ogg_uint16_t;
 
 #elif defined(__SYMBIAN32__)