diff --git a/Projections/otbImageEnvelope.cxx b/Projections/otbImageEnvelope.cxx
index d4b26e1fff56227db9ad04c4491080e067a1e990..2e8e75a2f4547471a065965b07ffb20ad333d135 100644
--- a/Projections/otbImageEnvelope.cxx
+++ b/Projections/otbImageEnvelope.cxx
@@ -39,9 +39,9 @@ int main(int argc, char* argv[])
   typedef otb::CommandLineArgumentParser ParserType;
   ParserType::Pointer parser = ParserType::New();
 
-  parser->SetProgramDescription("Write a vector file containing a polygon corresponding to the imate envelope.");
+  parser->SetProgramDescription("Write a vector file containing a polygon corresponding to the image envelope.");
   parser->AddInputImage();
-  parser->AddOption("--OutputVectorData","Vector Data file containg the envelope.","-out", 1, true);
+  parser->AddOption("--OutputVectorData","Vector Data file containg the envelope","-out",1,true);
 
   typedef otb::CommandLineArgumentParseResult ParserResultType;
   ParserResultType::Pointer  parseResult = ParserResultType::New();