diff --git a/spec/bundler/support/artifice/endpoint_500.rb b/spec/bundler/support/artifice/endpoint_500.rb
index 4dd507348d852a..9dd373bbf6e075 100644
--- a/spec/bundler/support/artifice/endpoint_500.rb
+++ b/spec/bundler/support/artifice/endpoint_500.rb
@@ -2,7 +2,7 @@
 
 require_relative "../path"
 
-$LOAD_PATH.unshift(*Dir[Spec::Path.base_system_gem_path.join("gems/{mustermann,rack,tilt,sinatra,ruby2_keywords,base64,logger}-*/lib")].map(&:to_s))
+$LOAD_PATH.unshift(*Spec::Path.sinatra_dependency_paths)
 
 require "sinatra/base"
 
diff --git a/spec/bundler/support/artifice/helpers/endpoint.rb b/spec/bundler/support/artifice/helpers/endpoint.rb
index 3861301c5966ba..1ceadb59009b75 100644
--- a/spec/bundler/support/artifice/helpers/endpoint.rb
+++ b/spec/bundler/support/artifice/helpers/endpoint.rb
@@ -2,7 +2,7 @@
 
 require_relative "../../path"
 
-$LOAD_PATH.unshift(*Dir[Spec::Path.base_system_gem_path.join("gems/{mustermann,rack,tilt,sinatra,ruby2_keywords,base64,logger}-*/lib")].map(&:to_s))
+$LOAD_PATH.unshift(*Spec::Path.sinatra_dependency_paths)
 
 require "sinatra/base"
 
diff --git a/spec/bundler/support/artifice/windows.rb b/spec/bundler/support/artifice/windows.rb
index 7a51a835e76b11..3056540beb2512 100644
--- a/spec/bundler/support/artifice/windows.rb
+++ b/spec/bundler/support/artifice/windows.rb
@@ -2,7 +2,7 @@
 
 require_relative "../path"
 
-$LOAD_PATH.unshift(*Dir[Spec::Path.base_system_gem_path.join("gems/{mustermann,rack,tilt,sinatra,ruby2_keywords,base64,logger}-*/lib")].map(&:to_s))
+$LOAD_PATH.unshift(*Spec::Path.sinatra_dependency_paths)
 
 require "sinatra/base"
 
diff --git a/spec/bundler/support/path.rb b/spec/bundler/support/path.rb
index b26e77d376399d..76e28db10b231a 100644
--- a/spec/bundler/support/path.rb
+++ b/spec/bundler/support/path.rb
@@ -280,6 +280,19 @@ def rake_path
       Dir["#{base_system_gems}/#{Bundler.ruby_scope}/**/rake*.gem"].first
     end
 
+    def sinatra_dependency_paths
+      deps = %w[
+        mustermann
+        rack
+        tilt
+        sinatra
+        ruby2_keywords
+        base64
+        logger
+      ]
+      Dir[base_system_gem_path.join("gems/{#{deps.join(",")}}-*/lib")].map(&:to_s)
+    end
+
     private
 
     def git_ls_files(glob)