diff --git a/base-values/mycloud-matrix.yaml b/base-values/mycloud-matrix.yaml
index 1b551c2..6762650 100644
--- a/base-values/mycloud-matrix.yaml
+++ b/base-values/mycloud-matrix.yaml
@@ -9,7 +9,7 @@ components:
       databases:
         matrix-synapse:
           type: postgresql
-          additionalParams: "LC_COLLATE='C' LC_CTYPE='C' ENCODING=UTF8 TEMPLATE=template0"
+          additionalParams: 'LC_COLLATE="C" LC_CTYPE="C" ENCODING=UTF8 TEMPLATE=template0'
 
   mycloud-matrix:
     enabled: true