diff --git a/src/kemal/route.cr b/src/kemal/route.cr
index 30f0e82..e63f658 100644
--- a/src/kemal/route.cr
+++ b/src/kemal/route.cr
@@ -14,7 +14,7 @@ class Kemal::Route
     @components.zip(components) do |route_component, req_component|
       if route_component.starts_with? ':'
         params ||= {} of String => String
-        params[route_component[1 .. -1]] = req_component
+        params[route_component[1..-1]] = req_component
       else
         return nil unless route_component == req_component
       end