diff --git a/src/emu/machine/upd765.c b/src/emu/machine/upd765.c
index d9f33902d64..8a44b7add2a 100644
--- a/src/emu/machine/upd765.c
+++ b/src/emu/machine/upd765.c
@@ -1311,8 +1311,10 @@ void upd765_family_device::command_end(floppy_info &fi, bool data_completion)
 	if(data_completion)
 		data_irq = true;
 	else
+	{
 		other_irq = true;
-	fi.st0_filled = true;
+		fi.st0_filled = true;
+	}
 	check_irq();
 }