diff --git a/lib/core/Handles/HandlesExprCall.py b/lib/core/Handles/HandlesExprCall.py
index 384d4c8..24eae90 100644
--- a/lib/core/Handles/HandlesExprCall.py
+++ b/lib/core/Handles/HandlesExprCall.py
@@ -538,7 +538,7 @@ class ExprCallHandle(BaseHandle):
                 return self.Trans.ExprAsmHandle._HandleAsmLlvm(Node)
             if FuncName == 'Addr':
                 return self.Trans.CSpecialCallHandle._HandleCAddrLlvm(Node)
-            if FuncName == 'Set':
+            if FuncName == 'Set' and self.Trans.SymbolTable.lookup('Set') is None:
                 return self.Trans.CSpecialCallHandle._HandleCSetLlvm(Node)
             if FuncName == 'Load':
                 return self.Trans.CSpecialCallHandle._HandleCLoadLlvm(Node)