diff --git a/src/disas.rs b/src/disas.rs
index 61a9b39..3758b56 100644
--- a/src/disas.rs
+++ b/src/disas.rs
@@ -841,7 +841,11 @@ impl<T> Disasm<'_, T> {
                     let rotation = if ins_word[10] {
                         Rotation::Register(ins_word[4..7].load_be::<u8>())
                     } else {
-                        Rotation::Immediate(ins_word[4..7].load_be::<u8>())
+                        let mut rotation = ins_word[4..7].load_be::<u8>();
+                        if rotation == 0 {
+                            rotation = 8;
+                        }
+                        Rotation::Immediate(rotation)
                     };
                     (op, dst, rotation)
                 };