diff --git a/package/etc/conf.d/conflib/_splunk/splunkfields.conf.tmpl b/package/etc/conf.d/conflib/_splunk/splunkfields.conf.tmpl
index 8f94271..45811d7 100644
--- a/package/etc/conf.d/conflib/_splunk/splunkfields.conf.tmpl
+++ b/package/etc/conf.d/conflib/_splunk/splunkfields.conf.tmpl
@@ -37,7 +37,7 @@ rewrite r_set_splunk_default {
 #overridden by user defined values
 block rewrite r_set_splunk_dest_default(
                               #While the following is not used it remains to prevent breaking changes in content
-                              index('{{- getenv "SC4S_DEST_SPLUNK_HEC_FALLBACK_INDEX" }}')
+                              index("{{- getenv "SC4S_DEST_SPLUNK_HEC_FALLBACK_INDEX" }}")
                               source("${.splunk.source}")                              
                               sourcetype()
                               template(`splunk-template`)