diff --git a/src/include/units/physical/si.h b/src/include/units/physical/si.h
index 385e510b..8781f985 100644
--- a/src/include/units/physical/si.h
+++ b/src/include/units/physical/si.h
@@ -22,23 +22,23 @@
 
 #pragma once
 
+#include "si/absorbed_dose.h"
 #include "si/area.h"
+#include "si/capacitance.h"
+#include "si/catalytic_activity.h"
+#include "si/conductance.h"
 #include "si/constants.h"
+#include "si/current_density.h"
+#include "si/density.h"
 #include "si/frequency.h"
+#include "si/inductance.h"
+#include "si/magnetic_flux.h"
+#include "si/magnetic_induction.h"
 #include "si/momentum.h"
 #include "si/power.h"
-#include "si/velocity.h"
-#include "si/volume.h"
-#include "si/surface_tension.h"
 #include "si/pressure.h"
-#include "si/density.h"
 #include "si/resistance.h"
+#include "si/surface_tension.h"
+#include "si/velocity.h"
 #include "si/voltage.h"
-#include "si/capacitance.h"
-#include "si/magnetic_induction.h"
-#include "si/magnetic_flux.h"
-#include "si/inductance.h"
-#include "si/conductance.h"
-#include "si/catalytic_activity.h"
-#include "si/absorbed_dose.h"
-#include "si/current_density.h"
+#include "si/volume.h"