diff --git a/ports/webassembly/mpconfigport.h b/ports/webassembly/mpconfigport.h
index ae5dfa6fa5..ece7868fb9 100644
--- a/ports/webassembly/mpconfigport.h
+++ b/ports/webassembly/mpconfigport.h
@@ -39,6 +39,7 @@
 #endif
 
 #define MICROPY_ALLOC_PATH_MAX      (256)
+#define MICROPY_PERSISTENT_CODE_LOAD (1)
 #define MICROPY_COMP_ALLOW_TOP_LEVEL_AWAIT (1)
 #define MICROPY_READER_VFS          (MICROPY_VFS)
 #define MICROPY_ENABLE_GC           (1)
diff --git a/tests/run-tests.py b/tests/run-tests.py
index 8acdcd2b36..1e1bd160af 100755
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -702,7 +702,6 @@ def run_tests(pyb, tests, args, result_dir, num_threads=1):
             skip_tests.add("micropython/emg_exc.py")
             skip_tests.add("micropython/extreme_exc.py")
             skip_tests.add("micropython/heapalloc_exc_compressed_emg_exc.py")
-            skip_tests.add("micropython/import_mpy_invalid.py")
 
     # Some tests are known to fail on 64-bit machines
     if pyb is None and platform.architecture()[0] == "64bit":