diff --git a/jmespath-gson/src/main/java/io/burt/jmespath/gson/GsonRuntime.java b/jmespath-gson/src/main/java/io/burt/jmespath/gson/GsonRuntime.java
index 9eb9a820..59cd8688 100644
--- a/jmespath-gson/src/main/java/io/burt/jmespath/gson/GsonRuntime.java
+++ b/jmespath-gson/src/main/java/io/burt/jmespath/gson/GsonRuntime.java
@@ -58,8 +58,9 @@ public List<JsonElement> toList(JsonElement value) {
     if (value.isJsonArray()) {
       return new JsonArrayListWrapper(value.getAsJsonArray());
     } else if (value.isJsonObject()) {
-      List<JsonElement> list = new ArrayList<>(value.getAsJsonObject().size());
-      for(Map.Entry<String, JsonElement> entry : value.getAsJsonObject().entrySet()) {
+      JsonObject object = value.getAsJsonObject();
+      List<JsonElement> list = new ArrayList<>(object.size());
+      for(Map.Entry<String, JsonElement> entry : object.entrySet()) {
         list.add(entry.getValue());
       }
       return list;