diff --git a/tests/test_core.py b/tests/test_core.py
index 7eb98a6e2962a..225fd53c43b5d 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -7135,8 +7135,8 @@ def test_binaryen_trap_mode(self):
       print('  f2i')
       self.do_run(open(path_from_root('tests', 'wasm', 'trap-f2i.cpp')).read(),
                   {
-                    'js': '|1337|', # JS did an fmod 2^32
-                    'clamp': '|-2147483648|',
+                    'js': '|1337|\n|4294967295|', # JS did an fmod 2^32 | normal
+                    'clamp': '|-2147483648|\n|4294967295|',
                     'allow': TRAP_OUTPUTS
                   }[mode])
 
diff --git a/tests/wasm/trap-f2i.cpp b/tests/wasm/trap-f2i.cpp
index e587f33bb80ab..95c6d86369b00 100644
--- a/tests/wasm/trap-f2i.cpp
+++ b/tests/wasm/trap-f2i.cpp
@@ -1,9 +1,18 @@
 #include <emscripten.h>
 
 int main() {
-  volatile double d = 17179870521;
-  EM_ASM({
-    Module.print('|' + $0 + '|')
-  }, int(d));
+  {
+    volatile double d = 17179870521;
+    EM_ASM({
+      Module.print('|' + $0 + '|')
+    }, int(d));
+  }
+  {
+    // unsigned
+    volatile double d = 4294967295.0;
+    EM_ASM({
+      Module.print('|' + ($0 >>> 0) + '|')
+    }, unsigned(d));
+  }
 }