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 {