diff --git a/lib/did_you_mean/jaro_winkler.rb b/lib/did_you_mean/jaro_winkler.rb
index edc456f..9a3e57f 100644
--- a/lib/did_you_mean/jaro_winkler.rb
+++ b/lib/did_you_mean/jaro_winkler.rb
@@ -8,8 +8,7 @@ def distance(str1, str2)
 
       m          = 0.0
       t          = 0.0
-      range      = length2 / 2 - 1
-      range      = 0 if range < 0
+      range      = length2 > 3 ? length2 / 2 - 1 : 0
       flags1     = 0
       flags2     = 0