diff --git a/tests/python/pants_test/backend/python/tasks/test_python_binary_integration.py b/tests/python/pants_test/backend/python/tasks/test_python_binary_integration.py
index a6669c0a561b..a8e658889aec 100644
--- a/tests/python/pants_test/backend/python/tasks/test_python_binary_integration.py
+++ b/tests/python/pants_test/backend/python/tasks/test_python_binary_integration.py
@@ -15,9 +15,9 @@
 from pants_test.pants_run_integration_test import PantsRunIntegrationTest
 
 
-_LINUX_PLATFORM = "linux-x86_64"
+_LINUX_PLATFORM = "linux_x86_64"
 _LINUX_WHEEL_SUBSTRING = "manylinux"
-_OSX_PLATFORM = "macosx-10.13-x86_64"
+_OSX_PLATFORM = "macosx_10.13_x86_64"
 _OSX_WHEEL_SUBSTRING = "macosx"