diff --git a/src/m68k.rs b/src/m68k.rs
index 8c4e08c..f77b193 100644
--- a/src/m68k.rs
+++ b/src/m68k.rs
@@ -1822,8 +1822,8 @@ impl M68K {
         let special_status_word = (u16::from(bus_error.cause.is_write()) << 8)
             | (u16::from(bus_error.cause.is_byte()) << 9)
             | (((bus_error.address & 0x1) as u16) << 10)
-            | u16::from(!ins)
-            | u16::from(ins);
+            | (u16::from(!ins) << 12)
+            | (u16::from(ins) << 13);
         self.push(u32::from(special_status_word), Size::Word)?;
         // Format & vector
         self.push(0x8002, Size::Word)?;