diff --git a/lanelet2_io/src/OsmHandlerLoad.cpp b/lanelet2_io/src/OsmHandlerLoad.cpp
index 4e1f6a63..4b5c7dba 100644
--- a/lanelet2_io/src/OsmHandlerLoad.cpp
+++ b/lanelet2_io/src/OsmHandlerLoad.cpp
@@ -2,6 +2,7 @@
 #include <lanelet2_core/geometry/Polygon.h>
 
 #include <boost/geometry/algorithms/is_valid.hpp>
+#include <clocale>
 #include <fstream>
 #include <iostream>
 #include <pugixml.hpp>
diff --git a/lanelet2_io/src/OsmHandlerWrite.cpp b/lanelet2_io/src/OsmHandlerWrite.cpp
index a397ea48..357c5c8f 100644
--- a/lanelet2_io/src/OsmHandlerWrite.cpp
+++ b/lanelet2_io/src/OsmHandlerWrite.cpp
@@ -1,3 +1,4 @@
+#include <clocale>
 #include <pugixml.hpp>
 #include <sstream>
 
@@ -296,7 +297,8 @@ void testAndPrintLocaleWarning(ErrorMessages& errors) {
 }
 }  // namespace
 
-void OsmWriter::write(const std::string& filename, const LaneletMap& laneletMap, ErrorMessages& errors, const io::Configuration& params) const {
+void OsmWriter::write(const std::string& filename, const LaneletMap& laneletMap, ErrorMessages& errors,
+                      const io::Configuration& params) const {
   testAndPrintLocaleWarning(errors);
   auto file = toOsmFile(laneletMap, errors, params);
   auto doc = osm::write(*file, params);
@@ -306,7 +308,8 @@ void OsmWriter::write(const std::string& filename, const LaneletMap& laneletMap,
   }
 }
 
-std::unique_ptr<osm::File> OsmWriter::toOsmFile(const LaneletMap& laneletMap, ErrorMessages& errors, const io::Configuration& params) const {
+std::unique_ptr<osm::File> OsmWriter::toOsmFile(const LaneletMap& laneletMap, ErrorMessages& errors,
+                                                const io::Configuration& params) const {
   return ToFileWriter::writeMap(laneletMap, projector(), errors, params);
 }
 }  // namespace io_handlers