diff --git a/aws/beta.ordbok.uib.no_stack.yaml b/aws/beta.ordbok.uib.no_stack.yaml
index 9701d421b700f3aed1b1809f4bd959880e01dd9e..3aa4673755b2e86dc3d4f6d8b04f0bea4d8182f6 100644
--- a/aws/beta.ordbok.uib.no_stack.yaml
+++ b/aws/beta.ordbok.uib.no_stack.yaml
@@ -123,7 +123,7 @@ Resources:
           LambdaFunctionAssociations:
             - EventType: viewer-request
               IncludeBody: false
-              LambdaFunctionARN: "arn:aws:lambda:us-east-1:${AWS::AccountId}:function:path_rewrite"
+              LambdaFunctionARN: !Sub "arn:aws:lambda:us-east-1:${AWS::AccountId}:function:path_rewrite"
           ForwardedValues:
             QueryString: 'false'
             Cookies:
@@ -144,7 +144,7 @@ Resources:
             LambdaFunctionAssociations:
               - EventType: viewer-request
                 IncludeBody: false
-                LambdaFunctionARN: "arn:aws:lambda:us-east-1:${AWS::AccountId}:function:path_rewrite"
+                LambdaFunctionARN: !Sub "arn:aws:lambda:us-east-1:${AWS::AccountId}:function:path_rewrite"
             ForwardedValues:
               QueryString: true
               Cookies: