diff --git a/installer/data/mysql/en/mandatory/sample_numberpatterns.yml b/installer/data/mysql/en/mandatory/sample_numberpatterns.yml
index b898b8264e..a5ae958947 100644
--- a/installer/data/mysql/en/mandatory/sample_numberpatterns.yml
+++ b/installer/data/mysql/en/mandatory/sample_numberpatterns.yml
@@ -36,13 +36,13 @@ tables:
           whenmorethan1: 99999
           setto1: 1
           numbering1: ~
-          label2: ""
+          label2: ~
           add2: ~
           every2: ~
           whenmorethan2: ~
           setto2: ~
           numbering2: ~
-          label3: ""
+          label3: ~
           add3: ~
           every3: ~
           whenmorethan3: ~
@@ -88,7 +88,7 @@ tables:
           whenmorethan2: 12
           setto2: 1
           numbering2: ~
-          label3: ""
+          label3: ~
           add3: ~
           every3: ~
           whenmorethan3: ~
@@ -111,7 +111,7 @@ tables:
           whenmorethan2: 99999
           setto2: 1
           numbering2: ~
-          label3: ""
+          label3: ~
           add3: ~
           every3: ~
           whenmorethan3: ~