diff --git a/McZapkie/hamulce.cpp b/McZapkie/hamulce.cpp
index b2ff9cd0..710f45f0 100644
--- a/McZapkie/hamulce.cpp
+++ b/McZapkie/hamulce.cpp
@@ -3142,7 +3142,7 @@ double TSt113::GetPF(double i_bcp, double PP, double HP, double dt, double ep)
 
     BCP = lround(i_bcp);
 
-    EPS = BEP_K[BCP];
+    EPS = BEP_K[BCP + 1];
 
     if (BCP > 0)
         BCP = BCP - 1;