diff --git a/hw/display/xlnx_dp.c b/hw/display/xlnx_dp.c
index ed856b596d..a071c81883 100644
--- a/hw/display/xlnx_dp.c
+++ b/hw/display/xlnx_dp.c
@@ -889,7 +889,7 @@ static void xlnx_dp_write(void *opaque, hwaddr offset, uint64_t value,
         xlnx_dp_update_irq(s);
         break;
     case DP_INT_DS:
-        s->core_registers[DP_INT_MASK] |= ~value;
+        s->core_registers[DP_INT_MASK] |= value;
         xlnx_dp_update_irq(s);
         break;
     default: