diff --git a/src/core/libraries/kernel/equeue.h b/src/core/libraries/kernel/equeue.h
index 17900238f..f8759137c 100644
--- a/src/core/libraries/kernel/equeue.h
+++ b/src/core/libraries/kernel/equeue.h
@@ -21,7 +21,7 @@ class EqueueInternal;
 struct EqueueEvent;
 
 struct SceKernelEvent {
-    enum Filter : int {
+    enum Filter : s16 {
         None = 0,
         Read = -1,
         Write = -2,