diff --git a/common/supplemental/supplementalData.xml b/common/supplemental/supplementalData.xml
index 25684d36c6e..1b595aac4f9 100644
--- a/common/supplemental/supplementalData.xml
+++ b/common/supplemental/supplementalData.xml
@@ -316,8 +316,8 @@ The printed version of ISO-4217:2001
         </region>
         <region iso3166="CH">
             <currency iso4217="CHF" from="1799-03-17"/>
-            <currency iso4217="CHE" tender="false"/>
-            <currency iso4217="CHW" tender="false"/>
+            <currency iso4217="CHE" from="1934-01-01" tender="false"/>
+            <currency iso4217="CHW" from="1934-01-01" tender="false"/>
         </region>
         <region iso3166="CI">
             <currency iso4217="XOF" from="1958-12-04"/>