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-rw-r--r--src/ProbabDistrib.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/ProbabDistrib.cpp b/src/ProbabDistrib.cpp
index c34c75982..ec3a4d85f 100644
--- a/src/ProbabDistrib.cpp
+++ b/src/ProbabDistrib.cpp
@@ -133,6 +133,7 @@ int cProbabDistrib::MapValue(int a_OrigValue) const
// Linearly interpolate between Lo and Hi:
int ProbDif = m_Cumulative[Hi].m_Probability - m_Cumulative[Lo].m_Probability;
+ ProbDif = (ProbDif != 0) ? ProbDif : 1;
int ValueDif = m_Cumulative[Hi].m_Value - m_Cumulative[Lo].m_Value;
return m_Cumulative[Lo].m_Value + (a_OrigValue - m_Cumulative[Lo].m_Probability) * ValueDif / ProbDif;
}