diff --git a/project_euler/problem_45/sol1.py b/project_euler/problem_45/sol1.py
index ed66e6fab210..70750a3b6fc9 100644
--- a/project_euler/problem_45/sol1.py
+++ b/project_euler/problem_45/sol1.py
@@ -1,4 +1,6 @@
 """
+https://projecteuler.net/problem=45
+
 Triangle, pentagonal, and hexagonal numbers are generated by the following formulae:
 Triangle	 	T(n) = (n * (n + 1)) / 2	 	1, 3, 6, 10, 15, ...
 Pentagonal	 	P(n) = (n * (3 * n − 1)) / 2	 	1, 5, 12, 22, 35, ...
@@ -39,10 +41,10 @@ def is_pentagonal(n: int) -> bool:
     return ((1 + root) / 6) % 1 == 0
 
 
-def compute_num(start: int = 144) -> int:
+def solution(start: int = 144) -> int:
     """
     Returns the next number which is traingular, pentagonal and hexagonal.
-    >>> compute_num(144)
+    >>> solution(144)
     1533776805
     """
     n = start
@@ -54,4 +56,4 @@ def compute_num(start: int = 144) -> int:
 
 
 if __name__ == "__main__":
-    print(f"{compute_num(144)} = ")
+    print(f"{solution(144)} = ")