diff --git a/litex/soc/cores/clock/efinix.py b/litex/soc/cores/clock/efinix.py
index 0ca5ebf6e..04a012f88 100644
--- a/litex/soc/cores/clock/efinix.py
+++ b/litex/soc/cores/clock/efinix.py
@@ -107,11 +107,15 @@ class EFINIXPLL(LiteXModule):
         clk_out_name = f"{self.name}_clkout{self.nclkouts}" if name == "" else name
 
         if cd is not None:
-            self.platform.add_extension([(clk_out_name, 0, Pins(1))])
             clk_name = f"{cd.name}_clk"
+            clk_out_name = clk_name # To unify constraints names
+            self.platform.add_extension([(clk_out_name, 0, Pins(1))])
             clk_out = self.platform.request(clk_out_name)
             self.comb += cd.clk.eq(clk_out)
-            self.platform.add_period_constraint(clk=clk_out, period=1e9/freq, name=clk_name)
+            # Efinity will generate xxx.pt.sdc constraints automaticaly,
+            # so, the user realy need to use the toplevel pin from the pll instead of an intermediate signal
+            # This is a dirty workaround. But i don't have any better
+            cd.clk = clk_out
             if with_reset:
                 self.specials += AsyncResetSynchronizer(cd, ~self.locked)
             self.platform.toolchain.excluded_ios.append(clk_out_name)