diff --git a/Code/Hyperspectral/otbPCAImageFilter.h b/Code/Hyperspectral/otbPCAImageFilter.h
index 24f7be0c204c7a4765ef36139e4fb4763d8a4e86..0758c8059dda517793ae524d6c43dd27d69cfef4 100644
--- a/Code/Hyperspectral/otbPCAImageFilter.h
+++ b/Code/Hyperspectral/otbPCAImageFilter.h
@@ -204,7 +204,7 @@ protected:
 
 private:
   PCAImageFilter( const Self & ); // not implemented
-  void operator ( const Self & ); // not implemented
+  void operator= ( const Self & ); // not implemented
 };
 
 } // end of namespace otb