diff --git a/src/systems/isq/include/units/isq/dimensions/momentum.h b/src/systems/isq/include/units/isq/dimensions/momentum.h
index f7240259..8508fb0a 100644
--- a/src/systems/isq/include/units/isq/dimensions/momentum.h
+++ b/src/systems/isq/include/units/isq/dimensions/momentum.h
@@ -23,6 +23,7 @@
 #pragma once
 
 #include <units/concepts.h>
+#include <units/isq/dimensions/mass.h>
 #include <units/isq/dimensions/speed.h>
 
 namespace units::isq {
diff --git a/src/systems/si-hep/include/units/isq/si/hep/area.h b/src/systems/si-hep/include/units/isq/si/hep/area.h
index 9718fb2d..da988438 100644
--- a/src/systems/si-hep/include/units/isq/si/hep/area.h
+++ b/src/systems/si-hep/include/units/isq/si/hep/area.h
@@ -29,7 +29,7 @@
 #include <units/symbol_text.h>
 // IWYU pragma: end_exports
 
-#include <units/isq/si/length.h>
+#include <units/isq/si/area.h>
 #include <units/unit.h>
 
 namespace units::isq::si::hep {