diff --git a/initial-reverse/README.md b/initial-reverse/README.md
index 0f058ce..3cfd64b 100644
--- a/initial-reverse/README.md
+++ b/initial-reverse/README.md
@@ -106,7 +106,8 @@ easy: `fopen()`, `getline()`, and `fclose()`.
 
 For printing (to screen, or to a file), use `fprintf()`.  Note that it is easy
 to write to standard output by passing `stdout` to `fprintf()`; it is also
-easy to write to a file by passing in the `FP*` returned by `fopen`.
+easy to write to a file by passing in the value returned by `fopen`, e.g.,
+`fp=fopen(...); fprintf(fp, ...);`.
 
 The routine `malloc()` is useful for memory allocation. Perhaps for
 adding elements to a list?