diff --git a/python/nixpkgs/soe/main.py b/python/nixpkgs/soe/main.py
index 1c6c4a8..ba258ad 100644
--- a/python/nixpkgs/soe/main.py
+++ b/python/nixpkgs/soe/main.py
@@ -8,15 +8,7 @@ def sieve_of_eratosthenes(n):
         yield prime
 
 def main():
-    num = 0
-    another = True
-    while another:
-        try:
-            num = int(input("Primes up to: "))
-            another = False
-        except ValueError:
-            pass
-
+    num = int(input("Primes up to: "))
     print()
     for i in sieve_of_eratosthenes(num):
         print(i)