diff --git a/gamedir/Data-1.13/Ja2_Options.INI b/gamedir/Data-1.13/Ja2_Options.INI
index ec39d891c..f581eff73 100644
--- a/gamedir/Data-1.13/Ja2_Options.INI
+++ b/gamedir/Data-1.13/Ja2_Options.INI
@@ -260,6 +260,8 @@ MAX_RAIN_DROPS =		80
 
 WEAPON_RELIABILITY_REDUCTION_PER_RAIN_INTENSITY = 0
 
+BREATH_GAIN_REDUCTION_PER_RAIN_INTENSITY = 25
+
 
 [JA2 Thunder Settings]
 
diff --git a/gamedir/Data/Ja2_Options.INI b/gamedir/Data/Ja2_Options.INI
index 5cce4be97..17fe15a46 100644
--- a/gamedir/Data/Ja2_Options.INI
+++ b/gamedir/Data/Ja2_Options.INI
@@ -260,6 +260,8 @@ MAX_RAIN_DROPS =		80
 
 WEAPON_RELIABILITY_REDUCTION_PER_RAIN_INTENSITY = 0
 
+BREATH_GAIN_REDUCTION_PER_RAIN_INTENSITY = 25
+
 
 [JA2 Thunder Settings]