diff --git a/modules/traincascade/boost.cpp b/modules/traincascade/boost.cpp
index 0dc0a05b8..c7304dae3 100644
--- a/modules/traincascade/boost.cpp
+++ b/modules/traincascade/boost.cpp
@@ -133,7 +133,7 @@ bool CvCascadeBoostParams::scanAttr( const String prmName, const String val)
     }
     else if( !prmName.compare( "-maxFalseAlarmRate" ) )
     {
-        weight_trim_rate = (float) atof( val.c_str() );
+        maxFalseAlarm = (float) atof( val.c_str() );
     }
     else if( !prmName.compare( "-weightTrimRate" ) )
     {