diff --git a/sinatra-contrib/lib/sinatra/capture.rb b/sinatra-contrib/lib/sinatra/capture.rb
index ea2f44ab0c..8a5d5fd9ec 100644
--- a/sinatra-contrib/lib/sinatra/capture.rb
+++ b/sinatra-contrib/lib/sinatra/capture.rb
@@ -1,6 +1,5 @@
 require 'sinatra/base'
 require 'sinatra/engine_tracking'
-require 'active_support/core_ext/object/try.rb'
 
 module Sinatra
   #
@@ -106,12 +105,12 @@ def capture(*args, &block)
         dummy      = DUMMIES.fetch(current_engine)
         options    = { :layout => false, :locals => {:args => args, :block => block }}
 
-        buffer.try :clear
+        buffer.clear unless buffer.nil?
         result = render(current_engine, dummy, options, &block)
       end
       result.strip.empty? && @capture ? @capture : result
     ensure
-      buffer.try :replace, old_buffer
+      buffer.replace(old_buffer) unless buffer.nil?
     end
 
     def capture_later(&block)
diff --git a/sinatra-contrib/sinatra-contrib.gemspec b/sinatra-contrib/sinatra-contrib.gemspec
index c3f33b6636..a61cd8bf04 100644
--- a/sinatra-contrib/sinatra-contrib.gemspec
+++ b/sinatra-contrib/sinatra-contrib.gemspec
@@ -39,7 +39,6 @@ EOF
   s.add_dependency "sinatra", version
   s.add_dependency "mustermann", "~> 1.0"
   s.add_dependency "backports", ">= 2.8.2"
-  s.add_dependency "activesupport", ">= 4.0.0"
   s.add_dependency "tilt",      ">= 1.3", "< 3"
   s.add_dependency "rack-protection", version
   s.add_dependency "multi_json"