diff --git a/installer/amxmodx-installer.nsi b/installer/amxmodx-installer.nsi
index 41fd9fef..a4fd6a35 100755
--- a/installer/amxmodx-installer.nsi
+++ b/installer/amxmodx-installer.nsi
@@ -248,6 +248,7 @@ Section "MainSection" SEC01
   File "installer\files\base\scripting\include\float.inc"
   File "installer\files\base\scripting\include\fun.inc"
   File "installer\files\base\scripting\include\geoip.inc"
+  File "installer\files\base\scripting\include\hlsdk_const.inc"
   File "installer\files\base\scripting\include\lang.inc"
   File "installer\files\base\scripting\include\messages.inc"
   File "installer\files\base\scripting\include\ns.inc"
@@ -600,6 +601,7 @@ Section Uninstall
   Delete "$INSTDIR\files\base\scripting\include\nvault.inc"
   Delete "$INSTDIR\files\base\scripting\include\messages.inc"
   Delete "$INSTDIR\files\base\scripting\include\lang.inc"
+  Delete "$INSTDIR\files\base\scripting\include\hlsdk_const.inc"
   Delete "$INSTDIR\files\base\scripting\include\geoip.inc"
   Delete "$INSTDIR\files\base\scripting\include\fun.inc"
   Delete "$INSTDIR\files\base\scripting\include\float.inc"