1 files changed, 1 insertions, 1 deletions
diff --git a/src/synth/synth-oper.ads b/src/synth/synth-oper.ads
index 69fbb232d..3f8e09bee 100644
--- a/src/synth/synth-oper.ads
+++ b/src/synth/synth-oper.ads
@@ -33,7 +33,7 @@ package Synth.Oper is
                                     Expr : Node) return Value_Acc;
 
    function Synth_Monadic_Operation (Syn_Inst : Synth_Instance_Acc;
-                                     Def : Iir_Predefined_Functions;
+                                     Imp : Node;
                                      Operand_Expr : Node;
                                      Loc : Node) return Value_Acc;
 end Synth.Oper;