diff --git a/common/hw-gfx-gma-port_detect.ads b/common/hw-gfx-gma-port_detect.ads
index 1cd8d6b..adf0681 100644
--- a/common/hw-gfx-gma-port_detect.ads
+++ b/common/hw-gfx-gma-port_detect.ads
@@ -20,4 +20,6 @@
      (Port     : in Active_Port_Type;
       Detected : out Boolean);
 
+   procedure Clear_Hotplug_Detect (Port : Active_Port_Type);
+
 end HW.GFX.GMA.Port_Detect;