diff --git a/data/core/init.lua b/data/core/init.lua
index 9ddf68e3..d964b624 100644
--- a/data/core/init.lua
+++ b/data/core/init.lua
@@ -1123,6 +1123,10 @@ function core.dir_rescan_add_job(dir, filepath)
 end
 
 
+function core.on_dirmonitor_modify()
+end
+
+
 function core.on_dir_change(watch_id, action, filepath)
   local dir = project_dir_by_watch_id(watch_id)
   if not dir then return end
@@ -1131,6 +1135,9 @@ function core.on_dir_change(watch_id, action, filepath)
     project_scan_remove_file(dir, filepath)
   elseif action == "create" then
     project_scan_add_file(dir, filepath)
+    core.on_dirmonitor_modify(dir, filepath);
+  elseif action == "modify" then
+    core.on_dirmonitor_modify(dir, filepath);
   end
 end
 
diff --git a/src/api/system.c b/src/api/system.c
index 5b72b4d8..c1a4abd3 100644
--- a/src/api/system.c
+++ b/src/api/system.c
@@ -240,7 +240,19 @@ top:
     case SDL_USEREVENT:
       lua_pushstring(L, "dirchange");
       lua_pushnumber(L, e.user.code >> 16);
-      lua_pushstring(L, (e.user.code & 0xffff) == DMON_ACTION_DELETE ? "delete" : "create");
+      switch (e.user.code & 0xffff) {
+        case DMON_ACTION_DELETE:
+          lua_pushstring(L, "delete");
+          break;
+        case DMON_ACTION_CREATE:
+          lua_pushstring(L, "create");
+          break;
+        case DMON_ACTION_MODIFY:
+          lua_pushstring(L, "modify");
+          break;
+        default:
+          return luaL_error(L, "unknown dmon event action: %d", e.user.code & 0xffff);
+      }
       lua_pushstring(L, e.user.data1);
       free(e.user.data1);
       return 4;
diff --git a/src/dirmonitor.c b/src/dirmonitor.c
index 958d463e..0063e400 100644
--- a/src/dirmonitor.c
+++ b/src/dirmonitor.c
@@ -52,8 +52,6 @@ void dirmonitor_watch_callback(dmon_watch_id watch_id, dmon_action action, const
     send_sdl_event(watch_id, DMON_ACTION_DELETE, oldfilepath);
     send_sdl_event(watch_id, DMON_ACTION_CREATE, filepath);
     break;
-  case DMON_ACTION_MODIFY:
-    break;
   default:
     send_sdl_event(watch_id, action, filepath);
   }