diff --git a/lib/mocha/minitest.rb b/lib/mocha/minitest.rb
index 3b969b967..d15ed15d3 100644
--- a/lib/mocha/minitest.rb
+++ b/lib/mocha/minitest.rb
@@ -2,5 +2,7 @@
 require 'mocha/deprecation'
 
 unless Mocha::Integration::MiniTest.activate
-  Deprecation.warning("MiniTest must be loaded *before* `require 'mocha/minitest'`.")
+  Mocha::Deprecation.warning(
+    "MiniTest must be loaded *before* `require 'mocha/minitest'`."
+  )
 end
diff --git a/lib/mocha/test_unit.rb b/lib/mocha/test_unit.rb
index 8f941a2b1..8e5d3afd2 100644
--- a/lib/mocha/test_unit.rb
+++ b/lib/mocha/test_unit.rb
@@ -2,5 +2,7 @@
 require 'mocha/deprecation'
 
 unless Mocha::Integration::TestUnit.activate
-  Deprecation.warning("Test::Unit must be loaded *before* `require 'mocha/test_unit'`.")
+  Mocha::Deprecation.warning(
+    "Test::Unit must be loaded *before* `require 'mocha/test_unit'`."
+  )
 end