diff --git a/llvm/core.py b/llvm/core.py
index e7e444a..11e7b9e 100644
--- a/llvm/core.py
+++ b/llvm/core.py
@@ -1404,9 +1404,11 @@ class CallOrInvokeInstruction(Instruction):
     def set_parameter_alignment(self, idx, align):
         _core.LLVMSetInstrParamAlignment(self.ptr, idx, align)
 
-    def _get_tc(self): return _core.LLVMIsTailCall(self.ptr)
-    def _set_tc(self, value): _core.LLVMSetTailCall(self.ptr, value)
-    tail_call = property(_get_tc, _set_tc)
+    # tail call is valid only for 'call', not 'invoke'
+    # disabled for now
+    #def _get_tc(self): return _core.LLVMIsTailCall(self.ptr)
+    #def _set_tc(self, value): _core.LLVMSetTailCall(self.ptr, value)
+    #tail_call = property(_get_tc, _set_tc)
 
 
 class PHINode(Instruction):
diff --git a/test/testall.py b/test/testall.py
index e16cf47..e379b46 100755
--- a/test/testall.py
+++ b/test/testall.py
@@ -329,6 +329,8 @@ def do_callorinvokeinstruction():
     i.add_parameter_attribute(0, ATTR_SEXT)
     i.remove_parameter_attribute(0, ATTR_SEXT)
     i.set_parameter_alignment(0, 8)
+    #tc = i.tail_call
+    #i.tail_call = 1
 
 
 def do_phinode():