diff --git a/2022/13.cpp b/2022/13.cpp
index 0cd9806..eb3a04f 100644
--- a/2022/13.cpp
+++ b/2022/13.cpp
@@ -182,15 +182,15 @@ TEST_SUITE("2022-13 examples") {
       "[1,[2,[3,[4,[5,6,7]]]],8,9]\n"
       "[1,[2,[3,[4,[5,6,0]]]],8,9]\n"
     };
-    auto const PacketPairs = Parse(in);
-    CHECK(13 == Part1(PacketPairs));
-    CHECK(140 == Part2(PacketPairs));
+    auto const packetPairs = Parse(in);
+    CHECK(13 == Part1(packetPairs));
+    CHECK(140 == Part2(packetPairs));
   }
 }
 
 auto Main(std::istream & in, std::ostream & out) -> void
 {
-  auto const PacketPairs = Parse(in);
-  out << "Part 1: " << Part1(PacketPairs) << std::endl;
-  out << "Part 2: " << Part2(PacketPairs) << std::endl;
+  auto const packetPairs = Parse(in);
+  out << "Part 1: " << Part1(packetPairs) << std::endl;
+  out << "Part 2: " << Part2(packetPairs) << std::endl;
 }