diff --git a/files/configs/horizon-source/templates/horizon-source-template.yml b/files/configs/horizon-source/templates/horizon-source-template.yml
index 530b20a8..814c2ae5 100644
--- a/files/configs/horizon-source/templates/horizon-source-template.yml
+++ b/files/configs/horizon-source/templates/horizon-source-template.yml
@@ -24,4 +24,5 @@ spec:
   #@ end
   secretRef:
     name: horizon-creds
-  serviceAccountName: horizon-source-sa
\ No newline at end of file
+  serviceAccountName: horizon-source-sa
+  payloadEncoding: application/json
\ No newline at end of file
diff --git a/files/configs/vsphere-source/templates/vsphere-source-template.yml b/files/configs/vsphere-source/templates/vsphere-source-template.yml
index cf666830..2ebb0023 100644
--- a/files/configs/vsphere-source/templates/vsphere-source-template.yml
+++ b/files/configs/vsphere-source/templates/vsphere-source-template.yml
@@ -29,4 +29,5 @@ spec:
   #@ end
   secretRef:
     name: vsphere-creds
-  serviceAccountName: vsphere-source-sa
\ No newline at end of file
+  serviceAccountName: vsphere-source-sa
+  payloadEncoding: application/json
\ No newline at end of file