diff --git a/src/luaapi.c b/src/luaapi.c
index fac86cf..aac4934 100644
--- a/src/luaapi.c
+++ b/src/luaapi.c
@@ -254,7 +254,14 @@ static int game_addentity(lua_State *L) {
 			if(lua_type(L, -1) == LUA_TSTRING) {
 				strncpy(c.trimesh.name, lua_tostring(L, -1), sizeof(c.trimesh.name) - 1);
 			} else {
-				c.trimesh.cache = *(struct TrimeshData**) luaL_checkudata(L, -1, "k3physics");
+				struct TrimeshData *tmd = *(struct TrimeshData**) luaL_checkudata(L, -1, "k3physics");
+				
+				struct ResManRes *res = resman_rev(tmd);
+				if(res) {
+					res->refs++;
+				}
+				
+				c.trimesh.cache = tmd;
 			}
 		}
 		lua_pop(L, 1);