diff --git a/src/ext/duktape/duk_config.h b/src/ext/duktape/duk_config.h
index df25012..6786810 100644
--- a/src/ext/duktape/duk_config.h
+++ b/src/ext/duktape/duk_config.h
@@ -2817,7 +2817,7 @@ typedef struct duk_hthread duk_context;
 #undef DUK_USE_EXEC_INDIRECT_BOUND_CHECK
 #undef DUK_USE_EXEC_PREFER_SIZE
 #define DUK_USE_EXEC_REGCONST_OPTIMIZE
-#undef DUK_USE_EXEC_TIMEOUT_CHECK
+#define DUK_USE_EXEC_TIMEOUT_CHECK duk_timeout_check
 #undef DUK_USE_EXPLICIT_NULL_INIT
 #undef DUK_USE_EXTSTR_FREE
 #undef DUK_USE_EXTSTR_INTERN_CHECK
@@ -2854,7 +2854,7 @@ typedef struct duk_hthread duk_context;
 #define DUK_USE_HTML_COMMENTS
 #define DUK_USE_IDCHAR_FASTPATH
 #undef DUK_USE_INJECT_HEAP_ALLOC_ERROR
-#undef DUK_USE_INTERRUPT_COUNTER
+#define DUK_USE_INTERRUPT_COUNTER
 #undef DUK_USE_INTERRUPT_DEBUG_FIXUP
 #define DUK_USE_JC
 #define DUK_USE_JSON_BUILTIN
@@ -2933,6 +2933,8 @@ typedef struct duk_hthread duk_context;
 #define DUK_USE_VOLUNTARY_GC
 #define DUK_USE_ZERO_BUFFER_DATA
 
+int duk_timeout_check(void*);
+
 /*
  *  You may add overriding #define/#undef directives below for
  *  customization.  You of course cannot un-#include or un-typedef
diff --git a/src/jsapi.c b/src/jsapi.c
index 58f7457..930d1b0 100644
--- a/src/jsapi.c
+++ b/src/jsapi.c
@@ -755,11 +755,19 @@ static const struct{duk_c_function func; s32 params;} ApiFunc[] =
 	{duk_sync, 3},
 };
 
+s32 duk_timeout_check(void* udata)
+{
+	tic_machine* machine = (tic_machine*)udata;
+	tic_tick_data* tick = machine->data;
+
+	return tick->forceExit && tick->forceExit(tick->data);
+}
+
 static void initDuktape(tic_machine* machine)
 {
 	closeJavascript(machine);
 
-	duk_context* duk = machine->js = duk_create_heap_default();
+	duk_context* duk = machine->js = duk_create_heap(NULL, NULL, NULL, machine, NULL);
 
 	{
 		duk_push_global_stash(duk);