Index: mob.c
===================================================================
--- mob.c   (revision 17007)
+++ mob.c   (working copy)
@@ -3598,7 +3598,7 @@
 {
    double rate = baserate;
 
-   if (battle_config.logarithmic_drops && rate_adjust > 0 && baserate > 0) //Logarithmic drops equation by Ishizu-Chan
+   if (battle_config.logarithmic_drops && rate_adjust > 0 && rate_adjust != 100 && baserate > 0) //Logarithmic drops equation by Ishizu-Chan
        //Equation: Droprate(x,y) = x * (5 - log(x)) ^ (ln(y) / ln(5))
        //x is the normal Droprate, y is the Modificator.
        rate = rate * pow((5.0 - log10(rate)), (log(rate_adjust/100.) / log(5.0))) + 0.5;