diff --git a/gamedir/Data-1.13/APBPConstants.ini b/gamedir/Data-1.13/APBPConstants.ini
index c460030ee..1ca4e6be5 100644
--- a/gamedir/Data-1.13/APBPConstants.ini
+++ b/gamedir/Data-1.13/APBPConstants.ini
@@ -330,7 +330,7 @@ BP_USE_DETONATOR = 0
 BP_PER_AP_NO_EFFORT = -50
 BP_PER_AP_MIN_EFFORT = -25
 BP_PER_AP_LT_EFFORT = -12
-BP_PER_AP_MOD_EFFORT = 6
+BP_PER_AP_MOD_EFFORT = 0
 
 BP_MOVEMENT_FLAT = 5
 BP_MOVEMENT_GRASS = 10
diff --git a/gamedir/Data/APBPConstants.ini b/gamedir/Data/APBPConstants.ini
index d1d7725ed..abb8d2c05 100644
--- a/gamedir/Data/APBPConstants.ini
+++ b/gamedir/Data/APBPConstants.ini
@@ -320,7 +320,7 @@ BP_USE_DETONATOR = 0
 BP_PER_AP_NO_EFFORT = -50
 BP_PER_AP_MIN_EFFORT = -25
 BP_PER_AP_LT_EFFORT = -12
-BP_PER_AP_MOD_EFFORT = 6
+BP_PER_AP_MOD_EFFORT = 0
 
 BP_MOVEMENT_FLAT = 5
 BP_MOVEMENT_GRASS = 10