diff --git a/src/hb-wasm-shape.cc b/src/hb-wasm-shape.cc
index 507ca1664..7c486fe51 100644
--- a/src/hb-wasm-shape.cc
+++ b/src/hb-wasm-shape.cc
@@ -62,6 +62,11 @@ init_wasm ()
   RuntimeInitArgs init_args;
   memset (&init_args, 0, sizeof (RuntimeInitArgs));
 
+  if (wasm_runtime_is_running_mode_supported (Mode_LLVM_JIT))
+    init_args.running_mode = Mode_LLVM_JIT;
+  else if (wasm_runtime_is_running_mode_supported (Mode_Fast_JIT))
+    init_args.running_mode = Mode_Fast_JIT;
+
   init_args.mem_alloc_type = Alloc_With_Allocator;
   init_args.mem_alloc_option.allocator.malloc_func = (void *) hb_malloc;
   init_args.mem_alloc_option.allocator.realloc_func = (void *) hb_realloc;