fix test_exceptions

1 files changed, 2 insertions, 0 deletions

diff --git a/tests/runner.py b/tests/runner.py
index 7a68070c..a6508fe9 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -2275,6 +2275,8 @@ Exception execution path of first function! 1
     def test_exceptions(self):
         if Settings.QUANTUM_SIZE == 1: return self.skip("we don't support libcxx in q1")
 
+        Settings.EXCEPTION_DEBUG = 1
+
         self.banned_js_engines = [NODE_JS] # node issue 1669, exception causes stdout not to be flushed
         Settings.DISABLE_EXCEPTION_CATCHING = 0
         if self.emcc_args is None: