diff --git a/src/pic.c b/src/pic.c
index fe6b29fc8..857f45cfc 100644
--- a/src/pic.c
+++ b/src/pic.c
@@ -436,6 +436,7 @@ pic_read(uint16_t addr, void *priv)
 	dev->data_bus = dev->irr;
 #endif
 	if (dev->ocw3 & 0x04) {
+		dev->interrupt &= ~0x20;	/* Freeze the interrupt until the poll is over. */
 		if (dev->int_pending) {
 			dev->data_bus = 0x80 | (dev->interrupt & 7);
 			pic_acknowledge(dev);
@@ -516,6 +517,8 @@ pic_write(uint16_t addr, uint8_t val, void *priv)
 		update_pending();
 	} else if (val & 0x08) {
 		dev->ocw3 = val;
+		if (dev->ocw3 & 0x04)
+			dev->interrupt |= 0x20;		/* Freeze the interrupt until the poll is over. */
 		if (dev->ocw3 & 0x40)
 			dev->special_mask_mode = !!(dev->ocw3 & 0x20);
 	} else {