diff --git a/orbis-kernel/include/orbis/sys/sysproto.hpp b/orbis-kernel/include/orbis/sys/sysproto.hpp
index ea368d542..da110fa47 100644
--- a/orbis-kernel/include/orbis/sys/sysproto.hpp
+++ b/orbis-kernel/include/orbis/sys/sysproto.hpp
@@ -701,7 +701,7 @@ SysResult sys_sandbox_path(Thread *thread /* TODO */);
 SysResult sys_mdbg_service(Thread *thread, uint32_t op, ptr<void> arg0,
                            ptr<void> arg1);
 SysResult sys_randomized_path(Thread *thread /* TODO */);
-SysResult sys_rdup(Thread *thread /* TODO */);
+SysResult sys_rdup(Thread *thread, sint a, sint b);
 SysResult sys_dl_get_metadata(Thread *thread /* TODO */);
 SysResult sys_workaround8849(Thread *thread /* TODO */);
 SysResult sys_is_development_mode(Thread *thread /* TODO */);
diff --git a/orbis-kernel/src/sys/sys_sce.cpp b/orbis-kernel/src/sys/sys_sce.cpp
index 102466d77..2d377b4b3 100644
--- a/orbis-kernel/src/sys/sys_sce.cpp
+++ b/orbis-kernel/src/sys/sys_sce.cpp
@@ -215,8 +215,11 @@ orbis::SysResult orbis::sys_evf_open(Thread *thread, ptr<const char[32]> name) {
       return sys_evf_create(thread, name, kEvfAttrShared, 0x400000);
     }
 
-    if (std::string_view("SceShellCoreUtilAppFocus") == _name ||
-        std::string_view("SceBootStatusFlags") == _name) {
+    if (std::string_view("SceShellCoreUtilAppFocus") == _name) {
+      return sys_evf_create(thread, name, kEvfAttrShared, 1);
+    }
+
+    if (std::string_view("SceBootStatusFlags") == _name) {
       return sys_evf_create(thread, name, kEvfAttrShared, 0x2408);
     }
     return sys_evf_create(thread, name, kEvfAttrShared, 0);