diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a1384e..329489d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
 ## Unreleased 
+## Added
+- Added support for joining password protected MUCs.
 
 ## [v0.2.0]
 ### Added
diff --git a/README.md b/README.md
index 06f4399..17eaf3e 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,7 @@ If no configuration file is present or if the values should be overridden it is
 the account details via command line options:
 
 ```plain
-Usage: go-sendxmpp [-cdilnt] [-f value] [--help] [--http-upload value] [-j value] [-m value] [-p value] [--raw] [-r value] [--timeout value] [--tls-version value] [-u value] [--version] [parameters ...]
+Usage: go-sendxmpp [-cdilnt] [-f value] [--help] [--http-upload value] [-j value] [-m value] [--muc-password value] [-p value] [--raw] [-r value] [--timeout value] [--tls-version value] [-u value] [--version] [parameters ...]
  -c, --chatroom     Send message to a chatroom.
  -d, --debug        Show debugging info.
  -f, --file=value   Set configuration file. (Default:
@@ -89,6 +89,8 @@ Usage: go-sendxmpp [-cdilnt] [-f value] [--help] [--http-upload value] [-j value
  -l, --listen       Listen for messages and print them to stdout.
  -m, --message=value
                     Set file including the message.
+     --muc-password=value
+                    Password for password protected MUCs.
  -n, --no-tls-verify
                     Skip verification of TLS certificates (not recommended).
  -p, --password=value
diff --git a/go-sendxmpp.go b/go-sendxmpp.go
index af40ed1..25d59b5 100644
--- a/go-sendxmpp.go
+++ b/go-sendxmpp.go
@@ -241,6 +241,7 @@ func main() {
 	flagTLSMinVersion := getopt.IntLong("tls-version", 0, 12,
 		"Minimal TLS version. 10 (TSLv1.0), 11 (TLSv1.1), 12 (TLSv1.2) or 13 (TLSv1.3).")
 	flagVersion := getopt.BoolLong("version", 0, "Show version information.")
+	flagMUCPassword := getopt.StringLong("muc-password", 0, "", "Password for password protected MUCs.")
 
 	// Parse command line flags.
 	getopt.Parse()
@@ -414,10 +415,16 @@ func main() {
 
 	// Send raw XML to chatroom
 	if *flagChatroom && *flagRaw {
-
+		var err error
 		// Join the MUCs.
 		for _, recipient := range recipients {
-			_, err := client.JoinMUCNoHistory(recipient, *flagResource)
+			if *flagMUCPassword != "" {
+				dummyTime := time.Now()
+				_, err = client.JoinProtectedMUC(recipient, *flagResource,
+					*flagMUCPassword, 0, 0, &dummyTime)
+			} else {
+				_, err = client.JoinMUCNoHistory(recipient, *flagResource)
+			}
 			if err != nil {
 				// Try to nicely close connection,
 				// even if there was an error joining.
@@ -482,7 +489,13 @@ func main() {
 		for _, recipient := range recipients {
 
 			// Join the MUC.
-			_, err := client.JoinMUCNoHistory(recipient, *flagResource)
+			if *flagMUCPassword != "" {
+				dummyTime := time.Now()
+				_, err = client.JoinProtectedMUC(recipient, *flagResource,
+					*flagMUCPassword, 0, 0, &dummyTime)
+			} else {
+				_, err = client.JoinMUCNoHistory(recipient, *flagResource)
+			}
 			if err != nil {
 				// Try to nicely close connection,
 				// even if there was an error joining.
diff --git a/man/go-sendxmpp.1 b/man/go-sendxmpp.1
index 5d1b8ba..4c991b8 100644
--- a/man/go-sendxmpp.1
+++ b/man/go-sendxmpp.1
@@ -28,6 +28,8 @@ You can either pipe a programs output to \fBgo\-sendxmpp\fR, write in your termi
 .P
 \fB\-m\fR, \fB\-\-message\fR=[\fIvalue\fR]: Set file including the message\.
 .P
+\fB\-\-muc\-password\fR=[\fIvalue\fR]: Password for password protected MUCs\.
+.P
 \fB\-n\fR, \fB\-\-no\-tls\-verify\fR: Skip verification of TLS certificates (not recommended)\.
 .P
 \fB\-\-tls\-version\fR=[\fIvalue\fR]: Minimal TLS version\. 10 (TSLv1\.0), 11 (TLSv1\.1) (Default: 12)
diff --git a/man/go-sendxmpp.1.html b/man/go-sendxmpp.1.html
index 72a2a56..b5b0569 100644
--- a/man/go-sendxmpp.1.html
+++ b/man/go-sendxmpp.1.html
@@ -119,6 +119,9 @@ compatibility with the original perl sendxmpp) if no other configuration file lo
 <p><code>-m</code>, <code>--message</code>=[<var>value</var>]:
   Set file including the message.</p>
 
+<p><code>--muc-password</code>=[<var>value</var>]:
+  Password for password protected MUCs.</p>
+
 <p><code>-n</code>, <code>--no-tls-verify</code>:
   Skip verification of TLS certificates (not recommended).</p>
 
diff --git a/man/go-sendxmpp.1.ronn b/man/go-sendxmpp.1.ronn
index 706408c..e0cc805 100644
--- a/man/go-sendxmpp.1.ronn
+++ b/man/go-sendxmpp.1.ronn
@@ -44,6 +44,9 @@ compatibility with the original perl sendxmpp) if no other configuration file lo
   `-m`, `--message`=[<value>]:
   Set file including the message.
 
+  `--muc-password`=[<value>]:
+  Password for password protected MUCs.
+
   `-n`, `--no-tls-verify`:
   Skip verification of TLS certificates (not recommended).