diff --git a/system/lib/pthread/emscripten_futex_wait.c b/system/lib/pthread/emscripten_futex_wait.c
index 17e2cde06c971..984da5c7cc34a 100644
--- a/system/lib/pthread/emscripten_futex_wait.c
+++ b/system/lib/pthread/emscripten_futex_wait.c
@@ -25,6 +25,7 @@ int emscripten_futex_wait(volatile void *addr, uint32_t val, double max_wait_ms)
   // __builtin_wasm_memory_atomic_wait32 so we call out the JS function that
   // will busy wait.
   if (!_emscripten_thread_supports_atomics_wait()) {
+    emscripten_check_blocking_allowed();
     ret = _emscripten_futex_wait_non_blocking(addr, val, max_wait_ms);
     emscripten_conditional_set_current_thread_status(EM_THREAD_STATUS_WAITFUTEX, EM_THREAD_STATUS_RUNNING);
     return ret;
diff --git a/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.exports b/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.exports
index 2f772401a8105..ec14750b14e10 100644
--- a/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.exports
+++ b/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.exports
@@ -8,7 +8,7 @@ G
 H
 I
 J
-p
+K
 q
 r
 s
diff --git a/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.imports b/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.imports
index fcc5923256f40..259d8061349ff 100644
--- a/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.imports
+++ b/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.imports
@@ -13,3 +13,4 @@ a.l
 a.m
 a.n
 a.o
+a.p
diff --git a/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.sent b/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.sent
index f8c295c135e5d..b03757ea914f6 100644
--- a/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.sent
+++ b/tests/other/metadce/minimal_main_Oz_USE_PTHREADS_PROXY_TO_PTHREAD.sent
@@ -13,3 +13,4 @@ l
 m
 n
 o
+p