diff --git a/popper_js.gemspec b/popper_js.gemspec
index 985e428..f05a1a7 100644
--- a/popper_js.gemspec
+++ b/popper_js.gemspec
@@ -11,7 +11,7 @@ Gem::Specification.new do |spec|
   spec.authors       = ['Gleb Mazovetskiy']
   spec.email         = ['glex.spb@gmail.com']
 
-  spec.summary       = 'https://popper.js.org/ packaged for Sprockets.'
+  spec.summary       = 'Popper.js assets as a Ruby gem. https://popper.js.org/'
   spec.homepage      = 'https://github.com/glebm/popper_js-rubygem'
   spec.license       = 'MIT'
 
diff --git a/spec/popper_js_spec.rb b/spec/popper_js_spec.rb
index f5492bb..1f802e2 100644
--- a/spec/popper_js_spec.rb
+++ b/spec/popper_js_spec.rb
@@ -7,7 +7,7 @@
     expect(PopperJs::VERSION).not_to be nil
   end
 
-  it 'does something useful' do
-    expect(false).to eq(true)
+  it 'has the assets' do
+    expect(File).to exist('assets/javascripts/popper.js')
   end
 end