diff --git a/source/base/DetectorConstruction.h b/source/base/DetectorConstruction.h
index 1635cc124d..effcc13bff 100644
--- a/source/base/DetectorConstruction.h
+++ b/source/base/DetectorConstruction.h
@@ -11,6 +11,8 @@
 
 #include <G4VUserDetectorConstruction.hh>
 
+#include <memory>
+
 class G4GenericMessenger;
 
 namespace nexus {
diff --git a/source/base/PrimaryGeneration.h b/source/base/PrimaryGeneration.h
index 843d09eb40..b5b6691235 100644
--- a/source/base/PrimaryGeneration.h
+++ b/source/base/PrimaryGeneration.h
@@ -13,6 +13,8 @@
 #include <G4VUserPrimaryGeneratorAction.hh>
 #include <globals.hh>
 
+#include <memory>
+
 class G4VPrimaryGenerator;
 
 namespace nexus {