diff --git a/tools/mgba-rom-test-hydra/main.c b/tools/mgba-rom-test-hydra/main.c
index d9d8417e18..2c49b1dde8 100644
--- a/tools/mgba-rom-test-hydra/main.c
+++ b/tools/mgba-rom-test-hydra/main.c
@@ -65,8 +65,8 @@ struct Runner
     char failed_TestFilenameLine[MAX_SUMMARY_TESTS_TO_LIST][MAX_TEST_LIST_BUFFER_LENGTH];
     char knownFailingPassed_TestNames[MAX_SUMMARY_TESTS_TO_LIST][MAX_TEST_LIST_BUFFER_LENGTH];
     char knownFailingPassed_FilenameLine[MAX_SUMMARY_TESTS_TO_LIST][MAX_TEST_LIST_BUFFER_LENGTH];
-    char assumeFailed_TestNames[MAX_SUMMARY_TESTS_TO_LIST * MAX_PROCESSES][MAX_TEST_LIST_BUFFER_LENGTH];
-    char assumeFailed_FilenameLine[MAX_SUMMARY_TESTS_TO_LIST * MAX_PROCESSES][MAX_TEST_LIST_BUFFER_LENGTH];
+    char assumeFailed_TestNames[MAX_SUMMARY_TESTS_TO_LIST][MAX_TEST_LIST_BUFFER_LENGTH];
+    char assumeFailed_FilenameLine[MAX_SUMMARY_TESTS_TO_LIST][MAX_TEST_LIST_BUFFER_LENGTH];
 };
 
 static unsigned nrunners = 0;