diff --git a/include/freetype/config/integer-types.h b/include/freetype/config/integer-types.h
index b772845..af848fb 100644
--- a/include/freetype/config/integer-types.h
+++ b/include/freetype/config/integer-types.h
@@ -219,15 +219,18 @@
 
   /* this compiler provides the `__int64` type */
 #define FT_INT64   __int64
 #define FT_UINT64  unsigned __int64
 
 #elif defined( __WATCOMC__ )   /* Watcom C++ */
 
-  /* Watcom doesn't provide 64-bit data types */
+#if ( __WATCOMC__ >= 1100 )    /* As of Watcom 11.0 */
+#define FT_INT64   long long int
+#define FT_UINT64  unsigned long long int
+#endif
 
 #elif defined( __MWERKS__ )    /* Metrowerks CodeWarrior */
 
 #define FT_INT64   long long int
 #define FT_UINT64  unsigned long long int
 
 #elif defined( __GNUC__ )