diff --git a/blocks.js b/blocks.js
index f496ce8c..552be304 100644
--- a/blocks.js
+++ b/blocks.js
@@ -8421,7 +8421,7 @@ InputSlotMorph.prototype.distancesMenu = function () {
 	    dict['random position'] = ['random position'];
  	}
 	dict['mouse-pointer'] = ['mouse-pointer'];
-    dict['center'] = ['center'];
+    dict.center = ['center'];
 
     stage.children.forEach(function (morph) {
         if (morph instanceof SpriteMorph && !morph.isTemporary) {
diff --git a/history.txt b/history.txt
index 9260173b..2e0c3d1b 100755
--- a/history.txt
+++ b/history.txt
@@ -4100,3 +4100,4 @@ in development:
 180502
 ------
 * Blocks, Threads: added "center" to drop-down options of location blocks (GO TO, POINT TOWARDS, DISTANCE TO and DIRECTION TO)
+* updated German translation
diff --git a/lang-de.js b/lang-de.js
index e22b79e2..d9889356 100644
--- a/lang-de.js
+++ b/lang-de.js
@@ -185,7 +185,7 @@ SnapTranslator.dict.de = {
     'translator_e-mail':
         'jens@moenig.org', // optional
     'last_changed':
-        '2018-03-09', // this, too, will appear in the Translators tab
+        '2018-05-02', // this, too, will appear in the Translators tab
 
     // GUI
     // control bar:
@@ -1293,6 +1293,8 @@ SnapTranslator.dict.de = {
         'Kante',
     'pen trails':
         'Malspuren',
+    'center':
+        'Mitte',
 
     // costumes
     'Turtle':
diff --git a/locale.js b/locale.js
index 58706de9..a1ccf07d 100644
--- a/locale.js
+++ b/locale.js
@@ -42,7 +42,7 @@
 
 /*global modules, contains*/
 
-modules.locale = '2018-March-09';
+modules.locale = '2018-May-02';
 
 // Global stuff
 
@@ -160,7 +160,7 @@ SnapTranslator.dict.de = {
     'translator_e-mail':
         'jens@moenig.org',
     'last_changed':
-        '2018-03-09'
+        '2018-05-02'
 };
 
 SnapTranslator.dict.it = {