diff --git a/CHANGELOG.md b/CHANGELOG.md
index e347e033..15f2add4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@ HEAD
 * `deserializeMsgPack()` inserts `null` instead of returning `NotSupported`
 * Removed `DeserializationError::NotSupported`
 * Added `JsonVariant::is<JsonArrayConst/JsonObjectConst>()` (issue #1412)
-* Added `JsonVariant::is<JsonVariant>()` (issue #1412)
+* Added `JsonVariant::is<JsonVariant/JsonVariantConst>()` (issue #1412)
 
 > ### BREAKING CHANGES
 >
diff --git a/extras/tests/JsonVariant/is.cpp b/extras/tests/JsonVariant/is.cpp
index e2e046b4..fc7f9118 100644
--- a/extras/tests/JsonVariant/is.cpp
+++ b/extras/tests/JsonVariant/is.cpp
@@ -17,6 +17,7 @@ TEST_CASE("JsonVariant::is<T>()") {
     CHECK(variant.is<JsonObject>() == false);
     CHECK(variant.is<JsonArray>() == false);
     CHECK(variant.is<JsonVariant>() == false);
+    CHECK(variant.is<JsonVariantConst>() == false);
     CHECK(variant.is<bool>() == false);
     CHECK(variant.is<char *>() == false);
     CHECK(variant.is<int>() == false);
@@ -27,6 +28,7 @@ TEST_CASE("JsonVariant::is<T>()") {
 
   SECTION("null") {
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
     CHECK(variant.is<JsonObject>() == false);
     CHECK(variant.is<JsonArray>() == false);
     CHECK(variant.is<bool>() == false);
@@ -42,6 +44,7 @@ TEST_CASE("JsonVariant::is<T>()") {
 
     CHECK(variant.is<bool>() == true);
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
     CHECK(variant.is<JsonObject>() == false);
     CHECK(variant.is<JsonArray>() == false);
     CHECK(variant.is<char *>() == false);
@@ -56,6 +59,7 @@ TEST_CASE("JsonVariant::is<T>()") {
 
     CHECK(variant.is<bool>() == true);
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
     CHECK(variant.is<JsonObject>() == false);
     CHECK(variant.is<JsonArray>() == false);
     CHECK(variant.is<char *>() == false);
@@ -75,6 +79,7 @@ TEST_CASE("JsonVariant::is<T>()") {
     CHECK(variant.is<float>() == true);
     CHECK(variant.is<MYENUM2>() == true);
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
     CHECK(variant.is<bool>() == false);
     CHECK(variant.is<JsonObject>() == false);
     CHECK(variant.is<JsonArray>() == false);
@@ -88,6 +93,7 @@ TEST_CASE("JsonVariant::is<T>()") {
     CHECK(variant.is<double>() == true);
     CHECK(variant.is<float>() == true);
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
     CHECK(variant.is<bool>() == false);
     CHECK(variant.is<JsonObject>() == false);
     CHECK(variant.is<JsonArray>() == false);
@@ -104,6 +110,7 @@ TEST_CASE("JsonVariant::is<T>()") {
     CHECK(variant.is<const char *>() == true);
     CHECK(variant.is<std::string>() == true);
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
     CHECK(variant.is<double>() == false);
     CHECK(variant.is<float>() == false);
     CHECK(variant.is<bool>() == false);
@@ -119,6 +126,7 @@ TEST_CASE("JsonVariant::is<T>()") {
     CHECK(variant.is<JsonArray>() == true);
     CHECK(variant.is<JsonArrayConst>() == true);
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
     CHECK(variant.is<JsonObject>() == false);
     CHECK(variant.is<JsonObjectConst>() == false);
     CHECK(variant.is<int>() == false);
@@ -134,6 +142,7 @@ TEST_CASE("JsonVariant::is<T>()") {
     CHECK(variant.is<JsonObject>() == true);
     CHECK(variant.is<JsonObjectConst>() == true);
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
     CHECK(variant.is<JsonArray>() == false);
     CHECK(variant.is<JsonArrayConst>() == false);
     CHECK(variant.is<int>() == false);
@@ -142,6 +151,7 @@ TEST_CASE("JsonVariant::is<T>()") {
     CHECK(variant.is<char *>() == false);
     CHECK(variant.is<MYENUM2>() == false);
     CHECK(variant.is<JsonVariant>() == true);
+    CHECK(variant.is<JsonVariantConst>() == true);
   }
 }
 
diff --git a/src/ArduinoJson/Variant/VariantRef.hpp b/src/ArduinoJson/Variant/VariantRef.hpp
index bee99e0a..3b0dfd34 100644
--- a/src/ArduinoJson/Variant/VariantRef.hpp
+++ b/src/ArduinoJson/Variant/VariantRef.hpp
@@ -121,6 +121,16 @@ class VariantRefBase : public VariantTag {
   is() const {
     return !!_data;
   }
+  //
+  // bool is<VariantConstRef> const;
+  // bool is<const VariantConstRef> const;
+  template <typename T>
+  FORCE_INLINE typename enable_if<
+      is_same<typename remove_const<T>::type, VariantConstRef>::value,
+      bool>::type
+  is() const {
+    return !!_data;
+  }
 #if ARDUINOJSON_HAS_NULLPTR
   //
   // bool is<nullptr_t> const;