diff --git a/test/test_helper.rb b/test/test_helper.rb
index e87fc8ff6c99bfe9c600b81c7e5102d273369fb1..1e9fe49647e52743e105d869c772b60b249010e5 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,9 +1,12 @@
 # frozen_string_literal: true
 
-require "simplecov"
-SimpleCov.start do
-	add_filter "/test/"
-	enable_coverage :branch
+begin
+	require "simplecov"
+	SimpleCov.start do
+		add_filter "/test/"
+		enable_coverage :branch
+	end
+rescue LoadError
 end
 
 require "em_promise"