diff --git a/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModel.mo b/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModel.mo
index 64a919c9..b4dcc630 100644
--- a/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModel.mo
+++ b/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModel.mo
@@ -1,7 +1,7 @@
 within ModelicaByExample.BasicEquations.LotkaVolterra;
 model ClassicModel "This is the typical equation-oriented model"
   parameter Real alpha=0.1 "Reproduction rate of prey";
-  parameter Real beta=0.02 "Mortality rate of predator per prey";
+  parameter Real beta=0.02 "Mortality rate of prey per predator";
   parameter Real gamma=0.4 "Mortality rate of predator";
   parameter Real delta=0.02 "Reproduction rate of predator per prey";
   parameter Real x0=10 "Start value of prey population";
diff --git a/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModelFixedStartValues.mo b/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModelFixedStartValues.mo
index 2fd5589a..33c023eb 100644
--- a/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModelFixedStartValues.mo
+++ b/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModelFixedStartValues.mo
@@ -1,7 +1,7 @@
 within ModelicaByExample.BasicEquations.LotkaVolterra;
 model ClassicModelFixedStartValues "This is the typical equation-oriented model"
   parameter Real alpha=0.1 "Reproduction rate of prey";
-  parameter Real beta=0.02 "Mortality rate of predator per prey";
+  parameter Real beta=0.02 "Mortality rate of prey per predator";
   parameter Real gamma=0.4 "Mortality rate of predator";
   parameter Real delta=0.02 "Reproduction rate of predator per prey";
   parameter Real x0=10 "Initial prey population";
diff --git a/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModelInitialEquations.mo b/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModelInitialEquations.mo
index 254fb801..ccea7094 100644
--- a/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModelInitialEquations.mo
+++ b/ModelicaByExample/BasicEquations/LotkaVolterra/ClassicModelInitialEquations.mo
@@ -1,7 +1,7 @@
 within ModelicaByExample.BasicEquations.LotkaVolterra;
 model ClassicModelInitialEquations "This is the typical equation-oriented model"
   parameter Real alpha=0.1 "Reproduction rate of prey";
-  parameter Real beta=0.02 "Mortality rate of predator per prey";
+  parameter Real beta=0.02 "Mortality rate of prey per predator";
   parameter Real gamma=0.4 "Mortality rate of predator";
   parameter Real delta=0.02 "Reproduction rate of predator per prey";
   parameter Real x0=10 "Initial prey population";
diff --git a/ModelicaByExample/BasicEquations/LotkaVolterra/QuiescentModel.mo b/ModelicaByExample/BasicEquations/LotkaVolterra/QuiescentModel.mo
index 96ad1013..d182ac34 100644
--- a/ModelicaByExample/BasicEquations/LotkaVolterra/QuiescentModel.mo
+++ b/ModelicaByExample/BasicEquations/LotkaVolterra/QuiescentModel.mo
@@ -1,7 +1,7 @@
 within ModelicaByExample.BasicEquations.LotkaVolterra;
 model QuiescentModel "Find steady state solutions to LotkaVolterra equations"
   parameter Real alpha=0.1 "Reproduction rate of prey";
-  parameter Real beta=0.02 "Mortality rate of predator per prey";
+  parameter Real beta=0.02 "Mortality rate of prey per predator";
   parameter Real gamma=0.4 "Mortality rate of predator";
   parameter Real delta=0.02 "Reproduction rate of predator per prey";
   Real x "Prey population";
diff --git a/ModelicaByExample/BasicEquations/LotkaVolterra/QuiescentModelUsingStart.mo b/ModelicaByExample/BasicEquations/LotkaVolterra/QuiescentModelUsingStart.mo
index 172c5427..a3e110d8 100644
--- a/ModelicaByExample/BasicEquations/LotkaVolterra/QuiescentModelUsingStart.mo
+++ b/ModelicaByExample/BasicEquations/LotkaVolterra/QuiescentModelUsingStart.mo
@@ -1,7 +1,7 @@
 within ModelicaByExample.BasicEquations.LotkaVolterra;
 model QuiescentModelUsingStart "Find steady state solutions to LotkaVolterra equations"
   parameter Real alpha=0.1 "Reproduction rate of prey";
-  parameter Real beta=0.02 "Mortality rate of predator per prey";
+  parameter Real beta=0.02 "Mortality rate of prey per predator";
   parameter Real gamma=0.4 "Mortality rate of predator";
   parameter Real delta=0.02 "Reproduction rate of predator per prey";
   Real x(start=10) "Prey population";