diff --git a/cli/commands/test/test.ts b/cli/commands/test/test.ts
index f8cc03ec..62dfb6a2 100644
--- a/cli/commands/test/test.ts
+++ b/cli/commands/test/test.ts
@@ -289,6 +289,7 @@ export async function testWithReporter(reporterName : ReporterName | Reporter |
 							'-C', 'cache=n',
 							'-W', 'bulk-memory',
 							'-W', 'multi-memory',
+							'-W', 'memory64',
 							'-W', 'max-wasm-stack=4000000',
 							'-W', 'nan-canonicalization=y',
 							wasmFile,
@@ -475,4 +476,4 @@ function pipeMMF(proc : ChildProcessWithoutNullStreams, mmf : MMF1) {
 			resolve();
 		});
 	});
-}
\ No newline at end of file
+}