diff --git a/lib/fizzbuzz.rb b/lib/fizzbuzz.rb
index 717b0e7..6974587 100644
--- a/lib/fizzbuzz.rb
+++ b/lib/fizzbuzz.rb
@@ -5,7 +5,7 @@ def calculate number
     elsif number % 3 == 0 && number % 5 == 0
       'fizzbuzz'
     elsif number % 3 == 0
-      'fizz'
+      'fizz1'
     elsif number % 5 == 0
       'buzz'
     else