diff --git a/rpcs3/Emu/Cell/SPURecompiler.cpp b/rpcs3/Emu/Cell/SPURecompiler.cpp
index 1042ab5552..15ac17c446 100644
--- a/rpcs3/Emu/Cell/SPURecompiler.cpp
+++ b/rpcs3/Emu/Cell/SPURecompiler.cpp
@@ -6811,7 +6811,7 @@ public:
 		}
 		case MFC_Size:
 		{
-			set_reg_fixed(s_reg_mfc_size, trunc<u16>(val & 0x7fff).eval(m_ir));
+			set_reg_fixed(s_reg_mfc_size, trunc<u16>(val).eval(m_ir));
 			return;
 		}
 		case MFC_TagID:
diff --git a/rpcs3/Emu/Cell/SPUThread.cpp b/rpcs3/Emu/Cell/SPUThread.cpp
index 1ec16af2cb..06eb02b1cb 100644
--- a/rpcs3/Emu/Cell/SPUThread.cpp
+++ b/rpcs3/Emu/Cell/SPUThread.cpp
@@ -5278,7 +5278,7 @@ bool spu_thread::set_ch_value(u32 ch, u32 value)
 
 	case MFC_Size:
 	{
-		ch_mfc_cmd.size = value & 0x7fff;
+		ch_mfc_cmd.size = static_cast<u16>(std::min<u32>(value, 0xffff));
 		return true;
 	}