diff --git a/plugins/include/cstrike.inc b/plugins/include/cstrike.inc
index 861079bff..0b4e9bc1f 100644
--- a/plugins/include/cstrike.inc
+++ b/plugins/include/cstrike.inc
@@ -356,7 +356,7 @@ native CSWeaponID:CS_AliasToWeaponID(const String:alias[]);
  * @param len			Length of the destination array.
  * @return				Returns number of cells written.
  */
-native CS_WeaponIDToAlias(weaponID, String:destination[], len);
+native CS_WeaponIDToAlias(CSWeaponID:weaponID, String:destination[], len);
 
 /**
  * Do not edit below this line!