diff --git a/extras/tests/JsonVariant/set.cpp b/extras/tests/JsonVariant/set.cpp
index ab94dea9..aee1086a 100644
--- a/extras/tests/JsonVariant/set.cpp
+++ b/extras/tests/JsonVariant/set.cpp
@@ -8,7 +8,7 @@
 #include "Allocators.hpp"
 #include "Literals.hpp"
 
-using ArduinoJson::detail::sizeofObject;
+using namespace ArduinoJson::detail;
 
 enum ErrorCode { ERROR_01 = 1, ERROR_10 = 10 };
 
@@ -199,8 +199,8 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
     REQUIRE(variant.as<double>() == 1.2);
     REQUIRE(spy.log() ==
             AllocatorLog{
-                Allocate(sizeofPool()),
-                Reallocate(sizeofPool(), sizeofPool(1)),  // one extension slot
+                Allocate(sizeofPool<EightByteValue>()),
+                Reallocate(sizeofPool<EightByteValue>(), sizeofPool<EightByteValue>(1)),
             });
   }
 
@@ -222,8 +222,8 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
     REQUIRE(variant.as<int64_t>() == -2147483649LL);
     REQUIRE(spy.log() ==
             AllocatorLog{
-                Allocate(sizeofPool()),
-                Reallocate(sizeofPool(), sizeofPool(1)),  // one extension slot
+                Allocate(sizeofPool<EightByteValue>()),
+                Reallocate(sizeofPool<EightByteValue>(), sizeofPool<EightByteValue>(1)),
             });
   }
 
@@ -245,8 +245,8 @@ TEST_CASE("JsonVariant::set() when there is enough memory") {
     REQUIRE(variant.as<uint64_t>() == 4294967296);
     REQUIRE(spy.log() ==
             AllocatorLog{
-                Allocate(sizeofPool()),
-                Reallocate(sizeofPool(), sizeofPool(1)),  // one extension slot
+                Allocate(sizeofPool<EightByteValue>()),
+                Reallocate(sizeofPool<EightByteValue>(), sizeofPool<EightByteValue>(1)),
             });
   }