diff --git a/gamedir/Data-1.13/Ja2_Options.INI b/gamedir/Data-1.13/Ja2_Options.INI
index ecf88d1d8..ee2e80ce7 100644
--- a/gamedir/Data-1.13/Ja2_Options.INI
+++ b/gamedir/Data-1.13/Ja2_Options.INI
@@ -1908,6 +1908,9 @@ OVERHEATING_DISPLAY_THERMOMETER_RED_OFFSET = 100
 ; If a barrel is not in someone's inventory, it cools down a little bit better.
 OVERHEATING_COOLDOWN_MODIFICATOR_LONELYBARREL = 1.15
 
+; with this value one can increase or lower the temperature generated by all guns. Values from 0.1 to 10.0
+OVERHEATING_TEMPERATURE_GLOBAL_MODIFIER = 1.0
+
 ;******************************************************************************************************************************
 ;******************************************************************************************************************************