diff --git a/src/OpenMesh/Core/IO/reader/OMReader.cc b/src/OpenMesh/Core/IO/reader/OMReader.cc
index 748a177f..523054d5 100644
--- a/src/OpenMesh/Core/IO/reader/OMReader.cc
+++ b/src/OpenMesh/Core/IO/reader/OMReader.cc
@@ -792,7 +792,7 @@ size_t _OMReader_::restore_binary_custom_data(std::istream& _is, BaseProperty* _
 
       block_size = 0;
     } else {
-      omerr() << "Warning! Property " << _bp->name() << " not loaded: " << "Mismatching data sizes!n";
+      omerr() << "Warning! Property " << _bp->name() << " not loaded: " << "Mismatching data sizes!" << std::endl;
     }
   }