diff --git a/source/texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.c b/source/texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.c
index ac7081f0183a21895bd1d7dcb5b3a228f9693285..176c552aa594f9eeb9a1407af0e140e9ce554515 100644
--- a/source/texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.c
+++ b/source/texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.c
@@ -13,7 +13,7 @@ static int lua_geti (lua_State *L, int index, lua_Integer i) {
 }
 #endif
 
-int shape_full (lua_State *L) {
+static int shape_full (lua_State *L) {
   Font *font = (Font *)luaL_checkudata(L, 1, "harfbuzz.Font");
   Buffer *buf = (Buffer *)luaL_checkudata(L, 2, "harfbuzz.Buffer");
   unsigned int i;
@@ -50,12 +50,12 @@ int shape_full (lua_State *L) {
   return 1;
 }
 
-int version (lua_State *L) {
+static int version (lua_State *L) {
   lua_pushstring(L, hb_version_string());
   return 1;
 }
 
-int list_shapers (lua_State *L) {
+static int list_shapers (lua_State *L) {
   const char **shaper_list = hb_shape_list_shapers ();
   int i = 0;
 
diff --git a/source/texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.h b/source/texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.h
index 3d9d2e0190620c147267a1dc3d3231a14cb04204..60f5db9c22378d4075dda36f7829783c53898b15 100644
--- a/source/texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.h
+++ b/source/texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.h
@@ -37,3 +37,6 @@ int register_direction(lua_State *L);
 int register_language(lua_State *L);
 int register_ot(lua_State *L);
 int register_unicode(lua_State *L);
+
+// Missed declaration
+int luaopen_luaharfbuzz (lua_State *L);
diff --git a/source/texk/web2c/luatexdir/luatex_svnversion.h b/source/texk/web2c/luatexdir/luatex_svnversion.h
index 91aa3184a03906492ca3139be27023c059497562..673732b4c80a3e2a64abad3e7f751439736c081e 100644
--- a/source/texk/web2c/luatexdir/luatex_svnversion.h
+++ b/source/texk/web2c/luatexdir/luatex_svnversion.h
@@ -1 +1 @@
-#define luatex_svn_revision 7286
+#define luatex_svn_revision 7287