diff --git a/tests/python-test.py b/tests/python-test.py
index 590fd76..91fdab5 100644
--- a/tests/python-test.py
+++ b/tests/python-test.py
@@ -457,6 +457,13 @@ def prof_post_room_message_send(room, message):
     _create_win()
     prof.win_show(plugin_win, "fired -> prof_post_room_message_send: " + room + ", " + message)
 
+def prof_on_room_history_message(room, nick, message, timestamp):
+    _create_win()
+    if timestamp:
+        prof.win_show(plugin_win, "fired -> prof_on_room_history_message: " + room + ", " + nick + ", " + message + ", " + timestamp)
+    else:
+        prof.win_show(plugin_win, "fired -> prof_on_room_history_message: " + room + ", " + nick + ", " + message)
+
 def prof_pre_priv_message_display(room, nick, message):
     _create_win()
     prof.win_show(plugin_win, "fired -> prof_pre_priv_message_display: " + room + ", " + nick + ", " + message)
diff --git a/tests/test-c-plugin/test-c-plugin.c b/tests/test-c-plugin/test-c-plugin.c
index f6a1526..a5a3252 100644
--- a/tests/test-c-plugin/test-c-plugin.c
+++ b/tests/test-c-plugin/test-c-plugin.c
@@ -704,6 +704,23 @@ prof_post_room_message_send(const char * const room, const char *message)
     prof_win_show(plugin_win, buf);
 }
 
+void
+prof_on_room_history_message(const char * const room, const char *const nick, const char *const message, const char *const timestamp)
+{
+    create_win();
+
+    char *str = "fired -> prof_on_room_history_message: ";
+    if (timestamp == NULL) {
+        char buf[strlen(str) + strlen(room) + 2 + strlen(nick) + 2 + strlen(message) + 1];
+        sprintf(buf, "%s%s, %s, %s", str, room, nick, message);
+        prof_win_show(plugin_win, buf);
+    } else {
+        char buf[strlen(str) + strlen(room) + 2 + strlen(nick) + 2 + strlen(message) + 2 + strlen(timestamp) + 1];
+        sprintf(buf, "%s%s, %s, %s, %s", str, room, nick, message, timestamp);
+        prof_win_show(plugin_win, buf);
+    }
+}
+
 char *
 prof_pre_priv_message_display(const char * const room, const char * const nick, const char *message)
 {