diff --git a/BUILD/sddm-0.18.0/src/auth/AuthPrompt.h b/BUILD/sddm-0.18.0/src/auth/AuthPrompt.h
index 2f1b0f0..08a8a87 100644
--- a/BUILD/sddm-0.18.0/src/auth/AuthPrompt.h
+++ b/BUILD/sddm-0.18.0/src/auth/AuthPrompt.h
@@ -56,7 +56,8 @@ namespace SDDM {
             CHANGE_NEW,               ///< On changing the password: The new one
             CHANGE_REPEAT,            ///< On changing the password: The new one, repeated
             LOGIN_USER = 0x0080,      ///< On logging in: The username
-            LOGIN_PASSWORD            ///< On logging in: The password
+            LOGIN_PASSWORD,           ///< On logging in: The password
+            LOGIN_PIN                 ///< On logging in: The PIN code
         };
         /**
         * @return the type of the prompt
diff --git a/BUILD/sddm-0.18.0/src/daemon/Display.cpp b/BUILD/sddm-0.18.0/src/daemon/Display.cpp
index e489cab..adc3695 100644
--- a/BUILD/sddm-0.18.0/src/daemon/Display.cpp
+++ b/BUILD/sddm-0.18.0/src/daemon/Display.cpp
@@ -481,8 +481,8 @@ namespace SDDM {
         // see what we got from pam conv() and will be send to greeter
         qDebug() << "Display: requestChanged with " << n_prompts << " prompts from Auth";
 
-        // respond to login password request
-        if (n_prompts == 1 && type_prompt0 == AuthPrompt::LOGIN_PASSWORD) {
+        // respond to login password or login PIN request
+        if (n_prompts == 1 && type_prompt0 == AuthPrompt::LOGIN_PASSWORD || type_prompt0 == AuthPrompt::LOGIN_PIN) {
             m_auth->request()->prompts()[0]->setResponse(qPrintable(m_passPhrase));
             m_auth->request()->done();
             return;
diff --git a/BUILD/sddm-0.18.0/src/helper/backend/PamBackend.cpp b/BUILD/sddm-0.18.0/src/helper/backend/PamBackend.cpp
index 70bd65a..68582e5 100644
--- a/BUILD/sddm-0.18.0/src/helper/backend/PamBackend.cpp
+++ b/BUILD/sddm-0.18.0/src/helper/backend/PamBackend.cpp
@@ -80,6 +80,8 @@ namespace SDDM {
                 else {
                     return AuthPrompt::LOGIN_PASSWORD;
                 }
+            } else if (message.indexOf(QRegExp(QStringLiteral("\\bPIN\\b"), Qt::CaseInsensitive)) >= 0) {
+                return AuthPrompt::LOGIN_PIN;
             }
         }
         else {