diff --git a/repos/base/include/base/shared_object.h b/repos/base/include/base/shared_object.h
index b04a1171ef..ad4ebc1bba 100644
--- a/repos/base/include/base/shared_object.h
+++ b/repos/base/include/base/shared_object.h
@@ -14,6 +14,8 @@
 #ifndef _INCLUDE__BASE__SHARED_OBJECT_H_
 #define _INCLUDE__BASE__SHARED_OBJECT_H_
 
+#include <base/env.h>
+#include <base/allocator.h>
 #include <base/exception.h>
 #include <base/stdint.h>