diff --git a/Source/UnitTests/Core/PageFaultTest.cpp b/Source/UnitTests/Core/PageFaultTest.cpp
index e340ca7646..e873a28e73 100644
--- a/Source/UnitTests/Core/PageFaultTest.cpp
+++ b/Source/UnitTests/Core/PageFaultTest.cpp
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <chrono>
+#include <fmt/format.h>
 
 #include "Common/CommonTypes.h"
 #include "Common/Timer.h"
@@ -79,16 +80,19 @@ TEST(PageFault, PageFault)
   perform_invalid_access(data);
   auto end = std::chrono::high_resolution_clock::now();
 
-#define AS_NS(diff)                                                                                \
-  ((unsigned long long)std::chrono::duration_cast<std::chrono::nanoseconds>(diff).count())
+  auto difference_in_nanoseconds = [](auto start, auto end) {
+    return std::chrono::duration_cast<std::chrono::nanoseconds>(end - start).count();
+  };
 
   EMM::UninstallExceptionHandler();
   JitInterface::SetJit(nullptr);
 
-  printf("page fault timing:\n");
-  printf("start->HandleFault     %llu ns\n", AS_NS(pfjit.m_pre_unprotect_time - start));
-  printf("UnWriteProtectMemory   %llu ns\n",
-         AS_NS(pfjit.m_post_unprotect_time - pfjit.m_pre_unprotect_time));
-  printf("HandleFault->end       %llu ns\n", AS_NS(end - pfjit.m_post_unprotect_time));
-  printf("total                  %llu ns\n", AS_NS(end - start));
+  fmt::print("page fault timing:\n");
+  fmt::print("start->HandleFault     {} ns\n",
+             difference_in_nanoseconds(start, pfjit.m_pre_unprotect_time));
+  fmt::print("UnWriteProtectMemory   {} ns\n",
+             difference_in_nanoseconds(pfjit.m_pre_unprotect_time, pfjit.m_post_unprotect_time));
+  fmt::print("HandleFault->end       {} ns\n",
+             difference_in_nanoseconds(pfjit.m_post_unprotect_time, end));
+  fmt::print("total                  {} ns\n", difference_in_nanoseconds(start, end));
 }