diff --git a/math/fibonacci.cpp b/math/fibonacci.cpp
index da7736564..e15cfc0cc 100644
--- a/math/fibonacci.cpp
+++ b/math/fibonacci.cpp
@@ -6,7 +6,7 @@
  * integer as input.
  * \f[\text{fib}(n) = \text{fib}(n-1) + \text{fib}(n-2)\f]
  *
- * @see fibonacci_large.cpp, fibonacci_fast.cpp
+ * @see fibonacci_large.cpp, fibonacci_fast.cpp, string_fibonacci.cpp
  */
 #include <cassert>
 #include <iostream>
diff --git a/math/fibonacci_large.cpp b/math/fibonacci_large.cpp
index 4545fdc9f..d9dbff799 100644
--- a/math/fibonacci_large.cpp
+++ b/math/fibonacci_large.cpp
@@ -7,7 +7,7 @@
  * Took 0.608246 seconds to compute 50,000^th Fibonacci
  * number that contains 10450 digits!
  *
- * @see fibonacci.cpp, fibonacci_fast.cpp
+ * @see fibonacci.cpp, fibonacci_fast.cpp, string_fibonacci.cpp
  */
 
 #include <cinttypes>