diff --git a/src/optable.py b/src/optable.py
index fe551cf..a0bcb98 100644
--- a/src/optable.py
+++ b/src/optable.py
@@ -63,7 +63,7 @@ OPCODES = {
         # block 3
         0x40: OpD(OpF(0), OpL.BRANCH, OpA.BRANCH),
         0x50: OpD(OpF.QUICK, OpL.BRANCH, OpA.BRANCH),
-        0x51: OpD(OpF(0), OpL.BRANCH, OpA.IND_BRANCH),
+        0x41: OpD(OpF(0), OpL.BRANCH, OpA.IND_BRANCH),
         }
 
 if __name__ == "__main__":