diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0df2d3a..b4f6ae9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 0.29.1
+* Patch abstract route to work with Grape
+
 # 0.29.0
 * Add abstract route to span name
 * Fix not to raise "NoMethodError" for Rails:Module
diff --git a/lib/zipkin-tracer/application.rb b/lib/zipkin-tracer/application.rb
index cdb7aba..369ed91 100644
--- a/lib/zipkin-tracer/application.rb
+++ b/lib/zipkin-tracer/application.rb
@@ -13,7 +13,11 @@ def self.routable_request?(path_info, http_method)
 
     def self.get_route(env)
       return nil unless defined?(Rails)
-      req = Rack::Request.new(env)
+      stub_env = {
+        "PATH_INFO" => env[ZipkinTracer::RackHandler::PATH_INFO],
+        "REQUEST_METHOD" => env[ZipkinTracer::RackHandler::REQUEST_METHOD]
+      }
+      req = Rack::Request.new(stub_env)
       # Returns a string like /some/path/:id
       Rails.application.routes.router.recognize(req) do |route|
         return route.path.spec.to_s
diff --git a/lib/zipkin-tracer/version.rb b/lib/zipkin-tracer/version.rb
index d177495..928fe4b 100644
--- a/lib/zipkin-tracer/version.rb
+++ b/lib/zipkin-tracer/version.rb
@@ -1,3 +1,3 @@
 module ZipkinTracer
-  VERSION = '0.29.0'.freeze
+  VERSION = '0.29.1'.freeze
 end