diff --git a/include/aoclient.h b/include/aoclient.h
index 1869bc6..75eaa39 100644
--- a/include/aoclient.h
+++ b/include/aoclient.h
@@ -79,6 +79,7 @@ class AOClient : public QObject {
         {"MOTD", 1ULL << 7},
         {"ANNOUNCE", 1ULL << 8},
         {"MODCHAT", 1ULL << 9},
+        {"GM", 1ULL << 10},
         {"SUPER", ~0ULL}
     };
 
@@ -220,6 +221,7 @@ class AOClient : public QObject {
     void cmdKick(int argc, QStringList argv);
     void cmdAnnounce(int argc, QStringList argv);
     void cmdM(int argc, QStringList argv);
+    void cmdGM(int argc, QStringList argv);
     // Casing/RP
     void cmdPlay(int argc, QStringList argv);
     void cmdNeed(int argc, QStringList argv);
@@ -308,6 +310,7 @@ class AOClient : public QObject {
         {"motd", {ACLFlags.value("NONE"), 0, &AOClient::cmdMOTD}},
         {"announce", {ACLFlags.value("ANNOUNCE"), 1, &AOClient::cmdAnnounce}},
         {"m", {ACLFlags.value("MODCHAT"), 1, &AOClient::cmdM}},
+        {"gm", {ACLFlags.value("GM"), 1, &AOClient::cmdGM}}
     };
 
     QString partial_packet;
diff --git a/src/commands.cpp b/src/commands.cpp
index 8b87a42..71e7557 100644
--- a/src/commands.cpp
+++ b/src/commands.cpp
@@ -890,6 +890,22 @@ void AOClient::cmdM(int argc, QStringList argv)
     return;
 }
 
+void AOClient::cmdGM(int argc, QStringList argv)
+{
+    if (checkAuth(ACLFlags.value("MOTD"))) {
+        QString sender_name = ooc_name;
+        QString sender_area = server->area_names.value(current_area);
+        QString sender_message = argv.join(" ");
+        for (AOClient* client : server->clients) {
+            if (client->global_enabled)
+                client->sendPacket("CT", {"[G][" + sender_area + "]" + "["+sender_name+"][M]", sender_message});
+        }
+    }
+    else {
+        sendServerMessage("You do not have permission to use Global Mod Message.");
+    }
+}
+
 QStringList AOClient::buildAreaList(int area_idx)
 {
     QStringList entries;