diff --git a/Source/Core/Common/Arm64Emitter.cpp b/Source/Core/Common/Arm64Emitter.cpp
index 5801e5ea57..8812bceb7e 100644
--- a/Source/Core/Common/Arm64Emitter.cpp
+++ b/Source/Core/Common/Arm64Emitter.cpp
@@ -1754,7 +1754,8 @@ void ARM64FloatEmitter::EmitConversion(bool sf, bool S, u32 type, u32 rmode, u32
 
 void ARM64FloatEmitter::EmitCompare(bool M, bool S, u32 op, u32 opcode2, ARM64Reg Rn, ARM64Reg Rm)
 {
-	bool is_double = !IsSingle(Rn);
+	_assert_msg_(DYNA_REC, IsQuad(Rn), "%s doesn't support vector!", __FUNCTION__);
+	bool is_double = IsDouble(Rn);
 
 	Rn = DecodeReg(Rn);
 	Rm = DecodeReg(Rm);
@@ -1765,7 +1766,8 @@ void ARM64FloatEmitter::EmitCompare(bool M, bool S, u32 op, u32 opcode2, ARM64Re
 
 void ARM64FloatEmitter::EmitCondSelect(bool M, bool S, CCFlags cond, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm)
 {
-	bool is_double = !IsSingle(Rd);
+	_assert_msg_(DYNA_REC, IsQuad(Rd), "%s doesn't support vector!", __FUNCTION__);
+	bool is_double = IsDouble(Rd);
 
 	Rd = DecodeReg(Rd);
 	Rn = DecodeReg(Rn);
diff --git a/Source/Core/Core/PowerPC/JitArm64/JitArm64_FloatingPoint.cpp b/Source/Core/Core/PowerPC/JitArm64/JitArm64_FloatingPoint.cpp
index ef2637503f..e423791cde 100644
--- a/Source/Core/Core/PowerPC/JitArm64/JitArm64_FloatingPoint.cpp
+++ b/Source/Core/Core/PowerPC/JitArm64/JitArm64_FloatingPoint.cpp
@@ -321,8 +321,8 @@ void JitArm64::fselx(UGeckoInstruction inst)
 	ARM64Reg VB = fpr.R(inst.FB);
 	ARM64Reg VC = fpr.R(inst.FC);
 
-	m_float_emit.FCMPE(VA);
-	m_float_emit.FCSEL(V0, VC, VB, CC_GE);
+	m_float_emit.FCMPE(EncodeRegToDouble(VA));
+	m_float_emit.FCSEL(EncodeRegToDouble(V0), EncodeRegToDouble(VC), EncodeRegToDouble(VB), CC_GE);
 	m_float_emit.INS(64, VD, 0, V0, 0);
 
 	fpr.Unlock(V0);