diff --git a/sdk/tools/hhpcomp/lzx_compress/lz_nonslide.h b/sdk/tools/hhpcomp/lzx_compress/lz_nonslide.h
index 829697f9116..7db3f58c0d7 100644
--- a/sdk/tools/hhpcomp/lzx_compress/lz_nonslide.h
+++ b/sdk/tools/hhpcomp/lzx_compress/lz_nonslide.h
@@ -16,7 +16,7 @@
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
 
-#if defined(_WIN32) || defined(__APPLE__)
+#if defined(_WIN32) || defined(__APPLE__) || defined(__linux__)
 typedef unsigned char           u_char;
 #endif