diff --git a/smui/Dockerfile b/smui/Dockerfile
index f1fa28c..3e598a7 100644
--- a/smui/Dockerfile
+++ b/smui/Dockerfile
@@ -12,3 +12,11 @@ RUN apt-get update -y && apt-get install -y python3 python3-pip
 
 USER smui
 RUN python3 -m pip install requests
+
+# Need custom CMD to include our custom-application.conf
+CMD java \
+  -Dpidfile.path=$SMUI_CONF_PID_PATH \
+  -Dlogback.configurationFile=$SMUI_CONF_LOGBACK_XML_PATH \
+  -Dhttp.port=$SMUI_CONF_HTTP_PORT \
+  -Dconfig.file="/smui/conf/custom-application.conf" \
+  -jar /smui/search-management-ui-assembly-$SMUI_VERSION.jar
diff --git a/smui/conf/custom-application.conf b/smui/conf/custom-application.conf
new file mode 100644
index 0000000..b1a62a8
--- /dev/null
+++ b/smui/conf/custom-application.conf
@@ -0,0 +1,22 @@
+include "application.conf"
+
+smui.target-environment.config="""{
+  "LIVE": {
+    "fancy_preview": [
+      {
+        "rulesCollection": "6e1d4f5f-3436-4a85-b4d2-0c02ae6301f2",
+        "tenantTag": null,
+        "previewUrlTemplate": "https://www.example.com/en/main-tenant/search?query=$QUERY"
+      }
+    ]
+  },
+  "PRELIVE": {
+    "fancy_preview": [
+      {
+        "rulesCollection": "6e1d4f5f-3436-4a85-b4d2-0c02ae6301f2",
+        "tenantTag": null,
+        "previewUrlTemplate": "https://www.example.com/en/main-tenant/search?query=$QUERY"
+      }
+    ]
+  }
+}"""