diff --git a/primes.py b/primes.py
index 7b625e3..3ba8b7b 100644
--- a/primes.py
+++ b/primes.py
@@ -134,4 +134,4 @@ def demo():
 
 if __name__ == '__main__':
     demo()
-    
+    # this is the main funtion that is called when the script is run.
diff --git a/problem_2.py b/problem_2.py
index 0b75a3c..de69aea 100644
--- a/problem_2.py
+++ b/problem_2.py
@@ -6,6 +6,7 @@
 
 while True:
     fibo.append(fibo[-1]+fibo[-2])
-    if fibo[-1]>4000000:        break
+    if fibo[-1]>4000000:        
+        break
 
 print sum(filter(lambda x:x%2==0,fibo))