diff --git a/src/systems/isq-iec80000/include/units/isq/iec80000/storage_capacity.h b/src/systems/isq-iec80000/include/units/isq/iec80000/storage_capacity.h
index 5bed9626..ad80d97c 100644
--- a/src/systems/isq-iec80000/include/units/isq/iec80000/storage_capacity.h
+++ b/src/systems/isq-iec80000/include/units/isq/iec80000/storage_capacity.h
@@ -24,6 +24,7 @@
 
 #include <units/base_dimension.h>
 #include <units/isq/iec80000/binary_prefixes.h>
+#include <units/isq/si/prefixes.h>
 #include <units/quantity.h>
 #include <units/reference.h>
 #include <units/unit.h>