diff --git a/Legacy/Classification/otbKMeansClassification.cxx b/Legacy/Classification/otbKMeansClassification.cxx
index c80fc2eae37f936c1a7de7cade4203c6cdf0a224..f7024472c27fd1847cb24cf3a071ebf7ab247ae2 100644
--- a/Legacy/Classification/otbKMeansClassification.cxx
+++ b/Legacy/Classification/otbKMeansClassification.cxx
@@ -29,7 +29,7 @@ int main(int argc, char * argv[])
   parser->AddOption("--TrainingSetProbability","Probability for a sample to be selected in the training set","-tp", 1, true);
   parser->AddOption("--NumberOfClasses","Number of classes","-nc", 1, true);
   parser->AddOption("--InitialCentroidProbability","Probability for a pixel to be selected as an initial class centroid","-cp", 1, true);
-  parser->AddOption("--StreamingNumberOfLines","Number of lined for each streaming block","-sl", 1, true);
+  parser->AddOption("--StreamingNumberOfLines","Number of lines for each streaming block","-sl", 1, true);
 
 
   typedef otb::CommandLineArgumentParseResult ParserResultType;