diff --git a/Code/IO/otbImageFileReader.txx b/Code/IO/otbImageFileReader.txx
index b29af061f8c70beda129ebd1f6829559f4d6e7b9..e323196cfd64e1179f5558d35ed6865f2f7c919b 100644
--- a/Code/IO/otbImageFileReader.txx
+++ b/Code/IO/otbImageFileReader.txx
@@ -41,12 +41,12 @@ namespace otb
 {
 
 template<class T>
-bool PixelIsComplex(const std::complex<T>& dummy)
+bool PixelIsComplex(const std::complex<T>& /*dummy*/)
 {
   return true;
 }
 template<class T>
-bool PixelIsComplex(const T& dummy)
+bool PixelIsComplex(const T& /*dummy*/)
 {
   return false;
 }