diff --git a/R/featureLayers.R b/R/featureLayers.R
index 00bacf4..dbad7d6 100644
--- a/R/featureLayers.R
+++ b/R/featureLayers.R
@@ -128,16 +128,16 @@ featureLayerOptions <- function(
 #'                  "Heritage_Trees_Portland/FeatureServer/0"),
 #'     useServiceSymbology = TRUE,
 #'     labelProperty = "COMMON_NAM", labelOptions = labelOptions(textsize = "12px"),
-#'   popupProperty = JS("
-#'     function(feature) {
-#'       return L.Util.template(
-#'         \"<h3>{COMMON_NAM}</h3><hr />
-#'           <p>This tree is located at {ADDRESS} and its scientific name is {SCIENTIFIC}.</p>
-#'         \",
-#'         feature.properties
-#'       );
-#'     }"
-#'   ))
+#'   popupProperty = JS(paste0(
+#'     "function(feature) {",
+#'     "  return L.Util.template(",
+#'     "    \"<h3>{COMMON_NAM}</h3><hr />",
+#'     "      <p>This tree is located at {ADDRESS} and its scientific name is {SCIENTIFIC}.</p>",
+#'     "    \",",
+#'     "    feature.properties",
+#'     "  );",
+#'     "}"
+#'   )))
 #'
 #' ## for more examples see
 #' # browseURL(system.file("examples/featureLayers.R", package = "leaflet.esri"))
diff --git a/man/addEsriFeatureLayer.Rd b/man/addEsriFeatureLayer.Rd
index 4011742..ea732aa 100644
--- a/man/addEsriFeatureLayer.Rd
+++ b/man/addEsriFeatureLayer.Rd
@@ -105,16 +105,16 @@ leaflet() \%>\%
                  "Heritage_Trees_Portland/FeatureServer/0"),
     useServiceSymbology = TRUE,
     labelProperty = "COMMON_NAM", labelOptions = labelOptions(textsize = "12px"),
-  popupProperty = JS("
-    function(feature) {
-      return L.Util.template(
-        \\"<h3>{COMMON_NAM}</h3><hr />
-          <p>This tree is located at {ADDRESS} and its scientific name is {SCIENTIFIC}.</p>
-        \\",
-        feature.properties
-      );
-    }"
-  ))
+  popupProperty = JS(paste0(
+    "function(feature) {",
+    "  return L.Util.template(",
+    "    \\"<h3>{COMMON_NAM}</h3><hr />",
+    "      <p>This tree is located at {ADDRESS} and its scientific name is {SCIENTIFIC}.</p>",
+    "    \\",",
+    "    feature.properties",
+    "  );",
+    "}"
+  )))
 
 ## for more examples see
 # browseURL(system.file("examples/featureLayers.R", package = "leaflet.esri"))