1 files changed, 3 insertions, 3 deletions
diff --git a/app/Census/CensusOfDeutschland1919.php b/app/Census/CensusOfDeutschland1919.php
index c10cce7af8..5adb0f2067 100644
--- a/app/Census/CensusOfDeutschland1919.php
+++ b/app/Census/CensusOfDeutschland1919.php
@@ -26,7 +26,7 @@ class CensusOfDeutschland1919 extends CensusOfDeutschland implements CensusInter
      *
      * @return string
      */
-    public function censusDate()
+    public function censusDate(): string
     {
         return '08 OCT 1919';
     }
@@ -36,7 +36,7 @@ class CensusOfDeutschland1919 extends CensusOfDeutschland implements CensusInter
      *
      * @return string
      */
-    public function censusPlace()
+    public function censusPlace(): string
     {
         return 'Mecklenburg-Schwerin, Deutschland';
     }
@@ -46,7 +46,7 @@ class CensusOfDeutschland1919 extends CensusOfDeutschland implements CensusInter
      *
      * @return CensusColumnInterface[]
      */
-    public function columns()
+    public function columns(): array
     {
         return [
             new CensusColumnNull($this, 'Nummer', 'Laufende Nummer'),