diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bfcf8fd..ffcb906 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -930,14 +930,14 @@
 
 	tps64 = base_khz * 1000LL;
 	scaled64 = scaled_khz * 1000LL;
-	while (tps64 > scaled64*2 || tps64 & 0xffffffff00000000UL) {
+	while (tps64 > scaled64*2 || tps64 & 0xffffffff00000000ULL) {
 		tps64 >>= 1;
 		shift--;
 	}
 
 	tps32 = (uint32_t)tps64;
-	while (tps32 <= scaled64 || scaled64 & 0xffffffff00000000UL) {
-		if (scaled64 & 0xffffffff00000000UL || tps32 & 0x80000000)
+	while (tps32 <= scaled64 || scaled64 & 0xffffffff00000000ULL) {
+		if (scaled64 & 0xffffffff00000000ULL || tps32 & 0x80000000)
 			scaled64 >>= 1;
 		else
 			tps32 <<= 1;