diff --git a/.idea/misc.xml b/.idea/misc.xml
index 5d19981032..fbb68289f4 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -37,7 +37,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/java/info/nightscout/androidaps/MainActivity.java b/app/src/main/java/info/nightscout/androidaps/MainActivity.java
index 36d08346d8..56abc9bd86 100644
--- a/app/src/main/java/info/nightscout/androidaps/MainActivity.java
+++ b/app/src/main/java/info/nightscout/androidaps/MainActivity.java
@@ -141,6 +141,11 @@ public class MainActivity extends AppCompatActivity {
                 recreate();
                 break;
             }
+            case R.id.de_lang: {
+                LocaleHelper.setLocale(this, "de");
+                recreate();
+                break;
+            }
             case R.id.nav_export: {
                 ImportExportPrefs.exportSharedPreferences(this);
                 break;
diff --git a/app/src/main/res/menu/menu_main.xml b/app/src/main/res/menu/menu_main.xml
index ef7a82ff3e..4375e8946f 100644
--- a/app/src/main/res/menu/menu_main.xml
+++ b/app/src/main/res/menu/menu_main.xml
@@ -22,6 +22,9 @@
     <item
         android:id="@+id/cs_lang"
         android:title="@string/cs_lang" />
+    <item
+        android:id="@+id/de_lang"
+        android:title="@string/de_lang" />
     <item
         android:id="@+id/nav_exit"
         android:title="@string/nav_exit" />
diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index fd5b017aa3..4b75660efa 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -206,4 +206,5 @@
     <string name="export_to">Exportovat nastavení do</string>
     <string name="nav_export">Exportovat nastavení</string>
     <string name="nav_import">Importovat nastavení</string>
+    <string name="de_lang">Němčina</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 94989c73e0..3431d5614a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -214,5 +214,6 @@
     <string name="filenotfound">File not found</string>
     <string name="nav_export">Export settings</string>
     <string name="nav_import">Import settings</string>
+    <string name="de_lang">German language</string>
 
 </resources>