diff --git a/Core/memory.c b/Core/memory.c
index 28d2a7d..beb9a09 100644
--- a/Core/memory.c
+++ b/Core/memory.c
@@ -433,6 +433,10 @@ static void write_high_memory(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
                 return;
 
             case GB_IO_STAT:
+                /* A DMG bug: http://www.devrs.com/gb/files/faqs.html#GBBugs */
+                if (!gb->is_cgb && (gb->io_registers[GB_IO_STAT] & 0x3) < 2 && (gb->io_registers[GB_IO_LCDC] & 0x80)) {
+                    gb->io_registers[GB_IO_IF] |= 2;
+                }
                 /* Delete previous R/W bits */
                 gb->io_registers[GB_IO_STAT] &= 7;
                 /* Set them by value */