diff --git a/include/eigenpy/register.hpp b/include/eigenpy/register.hpp
index ba3bb0674c624f3b0da231f881b126adc1932172..5b5055ad27fa6c9d4666408adfcfeb5cc2e4fa4b 100644
--- a/include/eigenpy/register.hpp
+++ b/include/eigenpy/register.hpp
@@ -106,7 +106,7 @@ struct EIGENPY_DLLAPI Register {
   static Register &instance();
 
  private:
-  Register(){};
+  Register() {};
 
   struct Compare_PyTypeObject {
     bool operator()(const PyTypeObject *a, const PyTypeObject *b) const {