diff --git a/src/libguac/guacamole/protocol.h b/src/libguac/guacamole/protocol.h
index d1a0420a..ff7746ff 100644
--- a/src/libguac/guacamole/protocol.h
+++ b/src/libguac/guacamole/protocol.h
@@ -38,6 +38,9 @@
 #include <cairo/cairo.h>
 #include <stdarg.h>
 
+/* The protocol version */
+#define GUACAMOLE_PROTOCOL_VERSION "VERSION_1_1_0"
+
 /* CONTROL INSTRUCTIONS */
 
 /**
diff --git a/src/libguac/protocol.c b/src/libguac/protocol.c
index ee266e87..f58179f3 100644
--- a/src/libguac/protocol.c
+++ b/src/libguac/protocol.c
@@ -93,6 +93,11 @@ static int __guac_protocol_send_args(guac_socket* socket, const char** args) {
     int i;
 
     if (guac_socket_write_string(socket, "4.args")) return -1;
+    
+    // Send protocol version
+    if (guac_socket_write_string(socket, ",")
+            || __guac_socket_write_length_string(socket, GUACAMOLE_PROTOCOL_VERSION))
+        return -1;
 
     for (i=0; args[i] != NULL; i++) {
 
diff --git a/src/protocols/kubernetes/settings.c b/src/protocols/kubernetes/settings.c
index 6e8ddd41..ce7f6977 100644
--- a/src/protocols/kubernetes/settings.c
+++ b/src/protocols/kubernetes/settings.c
@@ -25,14 +25,6 @@
 
 /* Client plugin arguments */
 const char* GUAC_KUBERNETES_CLIENT_ARGS[] = {
-    /**
-     * This first argument defines the protocol version in use so that the
-     * client knows how to handle talking to different versions of guacd.
-     * If this is omitted the client may choose not to enable certain
-     * features.
-     */
-    "VERSION_1_1_0",
-    
     "hostname",
     "port",
     "namespace",
diff --git a/src/protocols/rdp/rdp_settings.c b/src/protocols/rdp/rdp_settings.c
index 9edcb746..f45b3a43 100644
--- a/src/protocols/rdp/rdp_settings.c
+++ b/src/protocols/rdp/rdp_settings.c
@@ -42,14 +42,6 @@
 
 /* Client plugin arguments */
 const char* GUAC_RDP_CLIENT_ARGS[] = {
-    /**
-     * This first argument defines the protocol version in use so that the
-     * client knows how to handle talking to different versions of guacd.
-     * If this is omitted the client may choose not to enable certain
-     * features.
-     */
-    "VERSION_1_1_0",
-    
     "hostname",
     "port",
     "domain",
diff --git a/src/protocols/ssh/settings.c b/src/protocols/ssh/settings.c
index a404e8ca..b69ddd6c 100644
--- a/src/protocols/ssh/settings.c
+++ b/src/protocols/ssh/settings.c
@@ -30,14 +30,6 @@
 
 /* Client plugin arguments */
 const char* GUAC_SSH_CLIENT_ARGS[] = {
-    /**
-     * This first argument defines the protocol version in use so that the
-     * client knows how to handle talking to different versions of guacd.
-     * If this is omitted the client may choose not to enable certain
-     * features.
-     */
-    "VERSION_1_1_0",
-    
     "hostname",
     "host-key",
     "port",
diff --git a/src/protocols/telnet/settings.c b/src/protocols/telnet/settings.c
index 4d2d4dd1..9d334df2 100644
--- a/src/protocols/telnet/settings.c
+++ b/src/protocols/telnet/settings.c
@@ -31,14 +31,6 @@
 
 /* Client plugin arguments */
 const char* GUAC_TELNET_CLIENT_ARGS[] = {
-    /**
-     * This first argument defines the protocol version in use so that the
-     * client knows how to handle talking to different versions of guacd.
-     * If this is omitted the client may choose not to enable certain
-     * features.
-     */
-    "VERSION_1_1_0",
-    
     "hostname",
     "port",
     "username",
diff --git a/src/protocols/vnc/settings.c b/src/protocols/vnc/settings.c
index 941a2757..c39aa730 100644
--- a/src/protocols/vnc/settings.c
+++ b/src/protocols/vnc/settings.c
@@ -31,14 +31,6 @@
 
 /* Client plugin arguments */
 const char* GUAC_VNC_CLIENT_ARGS[] = {
-    /**
-     * This first argument defines the protocol version in use so that the
-     * client knows how to handle talking to different versions of guacd.
-     * If this is omitted the client may choose not to enable certain
-     * features.
-     */
-    "VERSION_1_1_0",
-    
     "hostname",
     "port",
     "read-only",