diff --git a/CPP20.md b/CPP20.md
index 4707461..b75d8dd 100644
--- a/CPP20.md
+++ b/CPP20.md
@@ -329,7 +329,7 @@ After:
 ```c++
 enum class rgba_color_channel { red, green, blue, alpha };
 
-std::string_view to_string(rgba_color_channel channel) {
+std::string_view to_string(rgba_color_channel my_channel) {
   switch (my_channel) {
     using enum rgba_color_channel;
     case red:   return "red";
diff --git a/README.md b/README.md
index e8233c2..230b04e 100644
--- a/README.md
+++ b/README.md
@@ -422,7 +422,7 @@ After:
 ```c++
 enum class rgba_color_channel { red, green, blue, alpha };
 
-std::string_view to_string(rgba_color_channel channel) {
+std::string_view to_string(rgba_color_channel my_channel) {
   switch (my_channel) {
     using enum rgba_color_channel;
     case red:   return "red";