diff --git a/constraints/timing.sdc b/constraints/timing.sdc
index 9acdcb873b0b7027c29669541f9ff2c33fc01d21..74c542e4cf5039a56aa6007a8e7787efa01398f9 100644
--- a/constraints/timing.sdc
+++ b/constraints/timing.sdc
@@ -14,7 +14,7 @@ set_time_unit -picoseconds
 set_load_unit -femtofarads
 
 # Point de fonctionnement
-set_operating_conditions -max PVT_1P1V_0C -min PVT_0P9V_125C; # 1.1V, OC ; 0.9V, 125C
+set_operating_conditions -max_library PVT_1P1V_0C -min_library PVT_0P9V_125C; # 1.1V, OC ; 0.9V, 125C
 
 # Horloge principale
 set clk "clk"