diff --git a/torch/testing/_internal/common_utils.py b/torch/testing/_internal/common_utils.py
index e2c17754b1a53..15d83a890aabf 100644
--- a/torch/testing/_internal/common_utils.py
+++ b/torch/testing/_internal/common_utils.py
@@ -1676,6 +1676,20 @@ def check_if_enable(test: unittest.TestCase):
                         "rocm": TEST_WITH_ROCM,
                         "asan": TEST_WITH_ASAN
                     }
+
+                    invalid_platforms = list(filter(lambda p: p not in platform_to_conditional, platforms))
+                    if len(invalid_platforms) > 0:
+                        invalid_plats_str = ", ".join(invalid_platforms)
+                        valid_plats = ", ".join(platform_to_conditional.keys())
+
+                        print(f"Test {disabled_test} is disabled for some unrecognized ",
+                              f"platforms: [{invalid_plats_str}]. Please edit issue {issue_url} to fix the platforms ",
+                              "assigned to this flaky test, changing \"Platforms: ...\" to a comma separated ",
+                              f"subset of the following (or leave it blank to match all platforms): {valid_plats}")
+
+                        # Sanitize the platforms list so that we continue to disable the test for any valid platforms given
+                        platforms = list(filter(lambda p: p in platform_to_conditional, platforms))
+
                     if platforms == [] or any([platform_to_conditional[platform] for platform in platforms]):
                         skip_msg = f"Test is disabled because an issue exists disabling it: {issue_url}" \
                             f" for {'all' if platforms == [] else ''}platform(s) {', '.join(platforms)}. " \