From 5f486211a360b11f2c8f9891ffdf4deaa791b0f1 Mon Sep 17 00:00:00 2001
From: Peter LaFosse <peter@vector35.com>
Date: Wed, 29 Dec 2021 10:17:46 -0500
Subject: Fixes Vector35/binaryninja-api#2789

---
 python/mediumlevelil.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'python/mediumlevelil.py')

diff --git a/python/mediumlevelil.py b/python/mediumlevelil.py
index 63d876e8..bb039cc7 100644
--- a/python/mediumlevelil.py
+++ b/python/mediumlevelil.py
@@ -2334,7 +2334,9 @@ class MediumLevelILTailcallUntypedSsa(MediumLevelILCallBase, Tailcall, SSA):
 
 	@property
 	def params(self) -> MediumLevelILInstruction:
-		return self._get_expr(2)
+		inst = self._get_expr(2)
+		assert isinstance(inst, MediumLevelILCallParamSsa), "MediumLevelILTailcallUntypedSsa return bad type for 'params'"
+		return inst.src
 
 	@property
 	def stack(self) -> MediumLevelILInstruction:
-- 
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