diff --git a/js/src/frontend/BytecodeEmitter.cpp b/js/src/frontend/BytecodeEmitter.cpp
index 435b1b4cf..0d232a324 100644
--- a/js/src/frontend/BytecodeEmitter.cpp
+++ b/js/src/frontend/BytecodeEmitter.cpp
@@ -1385,7 +1385,7 @@ BytecodeEmitter::atBodyLevel(StmtInfoBCE* stmt) const
                               .enclosingStaticScope() == sc->staticScope());
         return bl;
     }
-    return !stmt || sc->isModuleBox();
+    return !stmt;
 }
 
 uint32_t
diff --git a/js/src/jit-test/tests/modules/bug-1236875.js b/js/src/jit-test/tests/modules/bug-1236875.js
new file mode 100644
index 000000000..41751f947
--- /dev/null
+++ b/js/src/jit-test/tests/modules/bug-1236875.js
@@ -0,0 +1,2 @@
+let m = parseModule(`{ function x() {} }`);
+m.declarationInstantiation();