diff --git a/src/core/libraries/kernel/event_flag/event_flag.cpp b/src/core/libraries/kernel/event_flag/event_flag.cpp
index 659d3cd7..0ca95768 100644
--- a/src/core/libraries/kernel/event_flag/event_flag.cpp
+++ b/src/core/libraries/kernel/event_flag/event_flag.cpp
@@ -48,6 +48,8 @@ int PS4_SYSV_ABI sceKernelCreateEventFlag(OrbisKernelEventFlag* ef, const char*
     case 0x20:
         thread_mode = EventFlagInternal::ThreadMode::Multi;
         break;
+    case 0x00:
+        break;
     default:
         UNREACHABLE();
     }