diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index aeb20b24b..962530d2d 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -410,7 +410,7 @@ ResultCode Thread::SetCoreAndAffinityMask(s32 new_core, u64 new_affinity_mask) {
     };
 
     const bool use_override = affinity_override_count != 0;
-    if (new_core == THREADDONTCHANGE_IDEAL) {
+    if (new_core == THREADPROCESSORID_DONT_UPDATE) {
         new_core = use_override ? ideal_core_override : ideal_core;
         if ((new_affinity_mask & (1ULL << new_core)) == 0) {
             return ERR_INVALID_COMBINATION;
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index 7ee437e17..c9870873d 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -35,9 +35,6 @@ enum ThreadProcessorId : s32 {
     /// Run thread on the ideal core specified by the process.
     THREADPROCESSORID_IDEAL = -2,
 
-    /// when setting Core and Affiny, keeps the ideal core intact
-    THREADDONTCHANGE_IDEAL = -3,
-
     /// Indicates that the preferred processor ID shouldn't be updated in
     /// a core mask setting operation.
     THREADPROCESSORID_DONT_UPDATE = -3,