diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index a14c4b6..697e34b 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -490,12 +490,12 @@
 	kvm_s390_get_regs_rre(vcpu, &reg1, &reg2);
 
 	/* This basically extracts the mask half of the psw. */
-	vcpu->run->s.regs.gprs[reg1] &= 0xffffffff00000000;
+	vcpu->run->s.regs.gprs[reg1] &= 0xffffffff00000000UL;
 	vcpu->run->s.regs.gprs[reg1] |= vcpu->arch.sie_block->gpsw.mask >> 32;
 	if (reg2) {
-		vcpu->run->s.regs.gprs[reg2] &= 0xffffffff00000000;
+		vcpu->run->s.regs.gprs[reg2] &= 0xffffffff00000000UL;
 		vcpu->run->s.regs.gprs[reg2] |=
-			vcpu->arch.sie_block->gpsw.mask & 0x00000000ffffffff;
+			vcpu->arch.sie_block->gpsw.mask & 0x00000000ffffffffUL;
 	}
 	return 0;
 }