1 files changed, 6 insertions, 5 deletions
diff --git a/exercises/065_builtins2.zig b/exercises/065_builtins2.zig
index 2d13994..4514b0b 100644
--- a/exercises/065_builtins2.zig
+++ b/exercises/065_builtins2.zig
@@ -137,19 +137,20 @@ pub fn main() void {
 }
 
 // NOTE: This exercise did not originally include the function below.
-// But a change after Zig 0.10.0 added the source file name to the
-// type. "Narcissus" became "065_builtins2.Narcissus".
+// After Zig 0.10.0, `@typeName` began prefixing the returned type name
+// with the source file name. For example, "Narcissus" became
+// "065_builtins2.Narcissus".
 //
 // To fix this, we've added this function to strip the filename from
 // the front of the type name. (It returns a slice of the type name
-// starting at the index + 1 of character ".")
+// starting just after the ".")
 //
 // We'll be seeing @typeName again in Exercise 070. For now, you can
 // see that it takes a Type and returns a u8 "string".
 fn maximumNarcissism(myType: type) []const u8 {
-    const indexOf = @import("std").mem.indexOf;
+    const find = @import("std").mem.find;
 
     // Turn "065_builtins2.Narcissus" into "Narcissus"
     const name = @typeName(myType);
-    return name[indexOf(u8, name, ".").? + 1 ..];
+    return name[find(u8, name, ".").? + 1 ..];
 }