Fix null pointer dereference.

diff --git a/src/lua/lua_task.c b/src/lua/lua_task.c
index 26ef75320212be0faa18392bb7df89214a84a1a6..e40fe01975489c13790cbab9a9789a80bd52b35b 100644 (file)
--- a/src/lua/lua_task.c
+++ b/src/lua/lua_task.c
@@ -1612,7 +1612,7 @@ lua_push_symbol_result (lua_State *L,
                        lua_pushnumber (L, s->score);
                        lua_settable (L, -3);
 
-                       if (s->def) {
+                       if (s->def && s->def->gr) {
                                lua_pushstring (L, "group");
                                lua_pushstring (L, s->def->gr->name);
                                lua_settable (L, -3);